221395440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{131783}}^1$

素因数の和:131806

約数の個数: 80

約数和(自身を含む): 784378368

約数和(自身を除く): 562982928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 131783, 263566, 395349, 527132, 658915, 790698, 922481, 1054264, 1317830, 1581396, 1844962, 1976745, 2108528, 2635660, 2767443, 3162792, 3689924, 3953490, 4612405, 5271320, 5534886, 6325584, 7379848, 7906980, 9224810, 10542640, 11069772, 13837215, 14759696, 15813960, 18449620, 22139544, 27674430, 31627920, 36899240, 44279088, 55348860, 73798480, 110697720, 221395440]

約数ペア:

[(1, 221395440), (2, 110697720), (3, 73798480), (4, 55348860), (5, 44279088), (6, 36899240), (7, 31627920), (8, 27674430), (10, 22139544), (12, 18449620), (14, 15813960), (15, 14759696), (16, 13837215), (20, 11069772), (21, 10542640), (24, 9224810), (28, 7906980), (30, 7379848), (35, 6325584), (40, 5534886), (42, 5271320), (48, 4612405), (56, 3953490), (60, 3689924), (70, 3162792), (80, 2767443), (84, 2635660), (105, 2108528), (112, 1976745), (120, 1844962), (140, 1581396), (168, 1317830), (210, 1054264), (240, 922481), (280, 790698), (336, 658915), (420, 527132), (560, 395349), (840, 263566), (1680, 131783)]