28537320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 128

約数和(自身を含む): 99843840

約数和(自身を除く): 71306520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 530, 636, 641, 742, 795, 840, 1060, 1113, 1272, 1282, 1484, 1590, 1855, 1923, 2120, 2226, 2564, 2968, 3180, 3205, 3710, 3846, 4452, 4487, 5128, 5565, 6360, 6410, 7420, 7692, 8904, 8974, 9615, 11130, 12820, 13461, 14840, 15384, 17948, 19230, 22260, 22435, 25640, 26922, 33973, 35896, 38460, 44520, 44870, 53844, 67305, 67946, 76920, 89740, 101919, 107688, 134610, 135892, 169865, 179480, 203838, 237811, 269220, 271784, 339730, 407676, 475622, 509595, 538440, 679460, 713433, 815352, 951244, 1019190, 1189055, 1358920, 1426866, 1902488, 2038380, 2378110, 2853732, 3567165, 4076760, 4756220, 5707464, 7134330, 9512440, 14268660, 28537320]

約数ペア:

[(1, 28537320), (2, 14268660), (3, 9512440), (4, 7134330), (5, 5707464), (6, 4756220), (7, 4076760), (8, 3567165), (10, 2853732), (12, 2378110), (14, 2038380), (15, 1902488), (20, 1426866), (21, 1358920), (24, 1189055), (28, 1019190), (30, 951244), (35, 815352), (40, 713433), (42, 679460), (53, 538440), (56, 509595), (60, 475622), (70, 407676), (84, 339730), (105, 271784), (106, 269220), (120, 237811), (140, 203838), (159, 179480), (168, 169865), (210, 135892), (212, 134610), (265, 107688), (280, 101919), (318, 89740), (371, 76920), (420, 67946), (424, 67305), (530, 53844), (636, 44870), (641, 44520), (742, 38460), (795, 35896), (840, 33973), (1060, 26922), (1113, 25640), (1272, 22435), (1282, 22260), (1484, 19230), (1590, 17948), (1855, 15384), (1923, 14840), (2120, 13461), (2226, 12820), (2564, 11130), (2968, 9615), (3180, 8974), (3205, 8904), (3710, 7692), (3846, 7420), (4452, 6410), (4487, 6360), (5128, 5565)]