640256760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12437}}^1$

素因数の和:12478

約数の個数: 192

約数和(自身を含む): 2444813280

約数和(自身を除く): 1804556520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 390, 396, 429, 440, 468, 495, 520, 572, 585, 660, 715, 780, 792, 858, 936, 990, 1144, 1170, 1287, 1320, 1430, 1560, 1716, 1980, 2145, 2340, 2574, 2860, 3432, 3960, 4290, 4680, 5148, 5720, 6435, 8580, 10296, 12437, 12870, 17160, 24874, 25740, 37311, 49748, 51480, 62185, 74622, 99496, 111933, 124370, 136807, 149244, 161681, 186555, 223866, 248740, 273614, 298488, 323362, 373110, 410421, 447732, 485043, 497480, 547228, 559665, 646724, 684035, 746220, 808405, 820842, 895464, 970086, 1094456, 1119330, 1231263, 1293448, 1368070, 1455129, 1492440, 1616810, 1641684, 1778491, 1940172, 2052105, 2238660, 2425215, 2462526, 2736140, 2910258, 3233620, 3283368, 3556982, 3880344, 4104210, 4477320, 4850430, 4925052, 5335473, 5472280, 5820516, 6156315, 6467240, 7113964, 7275645, 8208420, 8892455, 9700860, 9850104, 10670946, 11641032, 12312630, 14227928, 14551290, 16006419, 16416840, 17784910, 19401720, 21341892, 24625260, 26677365, 29102580, 32012838, 35569820, 42683784, 49250520, 53354730, 58205160, 64025676, 71139640, 80032095, 106709460, 128051352, 160064190, 213418920, 320128380, 640256760]

約数ペア:

[(1, 640256760), (2, 320128380), (3, 213418920), (4, 160064190), (5, 128051352), (6, 106709460), (8, 80032095), (9, 71139640), (10, 64025676), (11, 58205160), (12, 53354730), (13, 49250520), (15, 42683784), (18, 35569820), (20, 32012838), (22, 29102580), (24, 26677365), (26, 24625260), (30, 21341892), (33, 19401720), (36, 17784910), (39, 16416840), (40, 16006419), (44, 14551290), (45, 14227928), (52, 12312630), (55, 11641032), (60, 10670946), (65, 9850104), (66, 9700860), (72, 8892455), (78, 8208420), (88, 7275645), (90, 7113964), (99, 6467240), (104, 6156315), (110, 5820516), (117, 5472280), (120, 5335473), (130, 4925052), (132, 4850430), (143, 4477320), (156, 4104210), (165, 3880344), (180, 3556982), (195, 3283368), (198, 3233620), (220, 2910258), (234, 2736140), (260, 2462526), (264, 2425215), (286, 2238660), (312, 2052105), (330, 1940172), (360, 1778491), (390, 1641684), (396, 1616810), (429, 1492440), (440, 1455129), (468, 1368070), (495, 1293448), (520, 1231263), (572, 1119330), (585, 1094456), (660, 970086), (715, 895464), (780, 820842), (792, 808405), (858, 746220), (936, 684035), (990, 646724), (1144, 559665), (1170, 547228), (1287, 497480), (1320, 485043), (1430, 447732), (1560, 410421), (1716, 373110), (1980, 323362), (2145, 298488), (2340, 273614), (2574, 248740), (2860, 223866), (3432, 186555), (3960, 161681), (4290, 149244), (4680, 136807), (5148, 124370), (5720, 111933), (6435, 99496), (8580, 74622), (10296, 62185), (12437, 51480), (12870, 49748), (17160, 37311), (24874, 25740)]