18779880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:383

約数の個数: 128

約数和(自身を含む): 65433600

約数和(自身を除く): 46653720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 283, 316, 395, 420, 474, 553, 566, 632, 790, 840, 849, 948, 1106, 1132, 1185, 1415, 1580, 1659, 1698, 1896, 1981, 2212, 2264, 2370, 2765, 2830, 3160, 3318, 3396, 3962, 4245, 4424, 4740, 5530, 5660, 5943, 6636, 6792, 7924, 8295, 8490, 9480, 9905, 11060, 11320, 11886, 13272, 15848, 16590, 16980, 19810, 22120, 22357, 23772, 29715, 33180, 33960, 39620, 44714, 47544, 59430, 66360, 67071, 79240, 89428, 111785, 118860, 134142, 156499, 178856, 223570, 237720, 268284, 312998, 335355, 447140, 469497, 536568, 625996, 670710, 782495, 894280, 938994, 1251992, 1341420, 1564990, 1877988, 2347485, 2682840, 3129980, 3755976, 4694970, 6259960, 9389940, 18779880]

約数ペア:

[(1, 18779880), (2, 9389940), (3, 6259960), (4, 4694970), (5, 3755976), (6, 3129980), (7, 2682840), (8, 2347485), (10, 1877988), (12, 1564990), (14, 1341420), (15, 1251992), (20, 938994), (21, 894280), (24, 782495), (28, 670710), (30, 625996), (35, 536568), (40, 469497), (42, 447140), (56, 335355), (60, 312998), (70, 268284), (79, 237720), (84, 223570), (105, 178856), (120, 156499), (140, 134142), (158, 118860), (168, 111785), (210, 89428), (237, 79240), (280, 67071), (283, 66360), (316, 59430), (395, 47544), (420, 44714), (474, 39620), (553, 33960), (566, 33180), (632, 29715), (790, 23772), (840, 22357), (849, 22120), (948, 19810), (1106, 16980), (1132, 16590), (1185, 15848), (1415, 13272), (1580, 11886), (1659, 11320), (1698, 11060), (1896, 9905), (1981, 9480), (2212, 8490), (2264, 8295), (2370, 7924), (2765, 6792), (2830, 6636), (3160, 5943), (3318, 5660), (3396, 5530), (3962, 4740), (4245, 4424)]