20571661560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:626

約数の個数: 256

約数和(自身を含む): 64993104000

約数和(自身を除く): 44421442440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 109, 116, 120, 145, 174, 193, 218, 232, 281, 290, 327, 348, 386, 435, 436, 545, 562, 579, 580, 654, 696, 772, 843, 870, 872, 965, 1090, 1124, 1158, 1160, 1308, 1405, 1544, 1635, 1686, 1740, 1930, 2180, 2248, 2316, 2616, 2810, 2895, 3161, 3270, 3372, 3480, 3860, 4215, 4360, 4632, 5597, 5620, 5790, 6322, 6540, 6744, 7720, 8149, 8430, 9483, 11194, 11240, 11580, 12644, 13080, 15805, 16298, 16791, 16860, 18966, 21037, 22388, 23160, 24447, 25288, 27985, 30629, 31610, 32596, 33582, 33720, 37932, 40745, 42074, 44776, 47415, 48894, 54233, 55970, 61258, 63111, 63220, 65192, 67164, 75864, 81490, 83955, 84148, 91887, 94830, 97788, 105185, 108466, 111940, 122235, 122516, 126222, 126440, 134328, 153145, 162699, 162980, 167910, 168296, 183774, 189660, 195576, 210370, 216932, 223880, 244470, 245032, 252444, 271165, 306290, 315555, 325398, 325960, 335820, 367548, 379320, 420740, 433864, 459435, 488940, 504888, 542330, 610073, 612580, 631110, 650796, 671640, 735096, 813495, 841480, 888241, 918870, 977880, 1084660, 1220146, 1225160, 1262220, 1301592, 1572757, 1626990, 1776482, 1830219, 1837740, 2169320, 2440292, 2524440, 2664723, 3050365, 3145514, 3253980, 3552964, 3660438, 3675480, 4441205, 4718271, 4880584, 5329446, 5911397, 6100730, 6291028, 6507960, 7105928, 7320876, 7863785, 8882410, 9151095, 9436542, 10658892, 11822794, 12201460, 12582056, 13323615, 14641752, 15727570, 17734191, 17764820, 18302190, 18873084, 21317784, 23591355, 23645588, 24402920, 26647230, 29556985, 31455140, 35468382, 35529640, 36604380, 37746168, 47182710, 47291176, 53294460, 59113970, 62910280, 70936764, 73208760, 88670955, 94365420, 106588920, 118227940, 141873528, 171430513, 177341910, 188730840, 236455880, 342861026, 354683820, 514291539, 685722052, 709367640, 857152565, 1028583078, 1371444104, 1714305130, 2057166156, 2571457695, 3428610260, 4114332312, 5142915390, 6857220520, 10285830780, 20571661560]

約数ペア:

[(1, 20571661560), (2, 10285830780), (3, 6857220520), (4, 5142915390), (5, 4114332312), (6, 3428610260), (8, 2571457695), (10, 2057166156), (12, 1714305130), (15, 1371444104), (20, 1028583078), (24, 857152565), (29, 709367640), (30, 685722052), (40, 514291539), (58, 354683820), (60, 342861026), (87, 236455880), (109, 188730840), (116, 177341910), (120, 171430513), (145, 141873528), (174, 118227940), (193, 106588920), (218, 94365420), (232, 88670955), (281, 73208760), (290, 70936764), (327, 62910280), (348, 59113970), (386, 53294460), (435, 47291176), (436, 47182710), (545, 37746168), (562, 36604380), (579, 35529640), (580, 35468382), (654, 31455140), (696, 29556985), (772, 26647230), (843, 24402920), (870, 23645588), (872, 23591355), (965, 21317784), (1090, 18873084), (1124, 18302190), (1158, 17764820), (1160, 17734191), (1308, 15727570), (1405, 14641752), (1544, 13323615), (1635, 12582056), (1686, 12201460), (1740, 11822794), (1930, 10658892), (2180, 9436542), (2248, 9151095), (2316, 8882410), (2616, 7863785), (2810, 7320876), (2895, 7105928), (3161, 6507960), (3270, 6291028), (3372, 6100730), (3480, 5911397), (3860, 5329446), (4215, 4880584), (4360, 4718271), (4632, 4441205), (5597, 3675480), (5620, 3660438), (5790, 3552964), (6322, 3253980), (6540, 3145514), (6744, 3050365), (7720, 2664723), (8149, 2524440), (8430, 2440292), (9483, 2169320), (11194, 1837740), (11240, 1830219), (11580, 1776482), (12644, 1626990), (13080, 1572757), (15805, 1301592), (16298, 1262220), (16791, 1225160), (16860, 1220146), (18966, 1084660), (21037, 977880), (22388, 918870), (23160, 888241), (24447, 841480), (25288, 813495), (27985, 735096), (30629, 671640), (31610, 650796), (32596, 631110), (33582, 612580), (33720, 610073), (37932, 542330), (40745, 504888), (42074, 488940), (44776, 459435), (47415, 433864), (48894, 420740), (54233, 379320), (55970, 367548), (61258, 335820), (63111, 325960), (63220, 325398), (65192, 315555), (67164, 306290), (75864, 271165), (81490, 252444), (83955, 245032), (84148, 244470), (91887, 223880), (94830, 216932), (97788, 210370), (105185, 195576), (108466, 189660), (111940, 183774), (122235, 168296), (122516, 167910), (126222, 162980), (126440, 162699), (134328, 153145)]