20995680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 52160928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 32, 34, 40, 48, 51, 60, 62, 68, 80, 83, 85, 93, 96, 102, 120, 124, 136, 155, 160, 166, 170, 186, 204, 240, 248, 249, 255, 272, 310, 332, 340, 372, 408, 415, 465, 480, 496, 498, 510, 527, 544, 620, 664, 680, 744, 816, 830, 930, 992, 996, 1020, 1054, 1240, 1245, 1328, 1360, 1411, 1488, 1581, 1632, 1660, 1860, 1992, 2040, 2108, 2480, 2490, 2573, 2635, 2656, 2720, 2822, 2976, 3162, 3320, 3720, 3984, 4080, 4216, 4233, 4960, 4980, 5146, 5270, 5644, 6324, 6640, 7055, 7440, 7719, 7905, 7968, 8160, 8432, 8466, 9960, 10292, 10540, 11288, 12648, 12865, 13280, 14110, 14880, 15438, 15810, 16864, 16932, 19920, 20584, 21080, 21165, 22576, 25296, 25730, 28220, 30876, 31620, 33864, 38595, 39840, 41168, 42160, 42330, 43741, 45152, 50592, 51460, 56440, 61752, 63240, 67728, 77190, 82336, 84320, 84660, 87482, 102920, 112880, 123504, 126480, 131223, 135456, 154380, 169320, 174964, 205840, 218705, 225760, 247008, 252960, 262446, 308760, 338640, 349928, 411680, 437410, 524892, 617520, 656115, 677280, 699856, 874820, 1049784, 1235040, 1312230, 1399712, 1749640, 2099568, 2624460, 3499280, 4199136, 5248920, 6998560, 10497840, 20995680]

約数ペア:

[(1, 20995680), (2, 10497840), (3, 6998560), (4, 5248920), (5, 4199136), (6, 3499280), (8, 2624460), (10, 2099568), (12, 1749640), (15, 1399712), (16, 1312230), (17, 1235040), (20, 1049784), (24, 874820), (30, 699856), (31, 677280), (32, 656115), (34, 617520), (40, 524892), (48, 437410), (51, 411680), (60, 349928), (62, 338640), (68, 308760), (80, 262446), (83, 252960), (85, 247008), (93, 225760), (96, 218705), (102, 205840), (120, 174964), (124, 169320), (136, 154380), (155, 135456), (160, 131223), (166, 126480), (170, 123504), (186, 112880), (204, 102920), (240, 87482), (248, 84660), (249, 84320), (255, 82336), (272, 77190), (310, 67728), (332, 63240), (340, 61752), (372, 56440), (408, 51460), (415, 50592), (465, 45152), (480, 43741), (496, 42330), (498, 42160), (510, 41168), (527, 39840), (544, 38595), (620, 33864), (664, 31620), (680, 30876), (744, 28220), (816, 25730), (830, 25296), (930, 22576), (992, 21165), (996, 21080), (1020, 20584), (1054, 19920), (1240, 16932), (1245, 16864), (1328, 15810), (1360, 15438), (1411, 14880), (1488, 14110), (1581, 13280), (1632, 12865), (1660, 12648), (1860, 11288), (1992, 10540), (2040, 10292), (2108, 9960), (2480, 8466), (2490, 8432), (2573, 8160), (2635, 7968), (2656, 7905), (2720, 7719), (2822, 7440), (2976, 7055), (3162, 6640), (3320, 6324), (3720, 5644), (3984, 5270), (4080, 5146), (4216, 4980), (4233, 4960)]