20698440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:663

約数の個数: 128

約数和(自身を含む): 72817920

約数和(自身を除く): 52119480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 574, 601, 615, 820, 840, 861, 984, 1148, 1202, 1230, 1435, 1640, 1722, 1803, 2296, 2404, 2460, 2870, 3005, 3444, 3606, 4207, 4305, 4808, 4920, 5740, 6010, 6888, 7212, 8414, 8610, 9015, 11480, 12020, 12621, 14424, 16828, 17220, 18030, 21035, 24040, 24641, 25242, 33656, 34440, 36060, 42070, 49282, 50484, 63105, 72120, 73923, 84140, 98564, 100968, 123205, 126210, 147846, 168280, 172487, 197128, 246410, 252420, 295692, 344974, 369615, 492820, 504840, 517461, 591384, 689948, 739230, 862435, 985640, 1034922, 1379896, 1478460, 1724870, 2069844, 2587305, 2956920, 3449740, 4139688, 5174610, 6899480, 10349220, 20698440]

約数ペア:

[(1, 20698440), (2, 10349220), (3, 6899480), (4, 5174610), (5, 4139688), (6, 3449740), (7, 2956920), (8, 2587305), (10, 2069844), (12, 1724870), (14, 1478460), (15, 1379896), (20, 1034922), (21, 985640), (24, 862435), (28, 739230), (30, 689948), (35, 591384), (40, 517461), (41, 504840), (42, 492820), (56, 369615), (60, 344974), (70, 295692), (82, 252420), (84, 246410), (105, 197128), (120, 172487), (123, 168280), (140, 147846), (164, 126210), (168, 123205), (205, 100968), (210, 98564), (246, 84140), (280, 73923), (287, 72120), (328, 63105), (410, 50484), (420, 49282), (492, 42070), (574, 36060), (601, 34440), (615, 33656), (820, 25242), (840, 24641), (861, 24040), (984, 21035), (1148, 18030), (1202, 17220), (1230, 16828), (1435, 14424), (1640, 12621), (1722, 12020), (1803, 11480), (2296, 9015), (2404, 8610), (2460, 8414), (2870, 7212), (3005, 6888), (3444, 6010), (3606, 5740), (4207, 4920), (4305, 4808)]