20166027476

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{42443}}^1$

素因数の和:42764

約数の個数: 48

約数和(自身を含む): 41072209920

約数和(自身を除く): 20906182444

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 239, 284, 478, 497, 956, 994, 1673, 1988, 3346, 6692, 16969, 33938, 42443, 67876, 84886, 118783, 169772, 237566, 297101, 475132, 594202, 1188404, 3013453, 6026906, 10143877, 12053812, 20287754, 21094171, 40575508, 42188342, 71007139, 84376684, 142014278, 284028556, 720215267, 1440430534, 2880861068, 5041506869, 10083013738, 20166027476]

約数ペア:

[(1, 20166027476), (2, 10083013738), (4, 5041506869), (7, 2880861068), (14, 1440430534), (28, 720215267), (71, 284028556), (142, 142014278), (239, 84376684), (284, 71007139), (478, 42188342), (497, 40575508), (956, 21094171), (994, 20287754), (1673, 12053812), (1988, 10143877), (3346, 6026906), (6692, 3013453), (16969, 1188404), (33938, 594202), (42443, 475132), (67876, 297101), (84886, 237566), (118783, 169772)]