20197980728

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{2143}}^1\times {\mathrm{22229}}^1$

素因数の和:24431

約数の個数: 32

約数和(自身を含む): 38605507200

約数和(自身を除く): 18407526472

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 2143, 4286, 8572, 17144, 22229, 44458, 88916, 113579, 177832, 227158, 454316, 908632, 1178137, 2356274, 4712548, 9425096, 47636747, 95273494, 190546988, 381093976, 2524747591, 5049495182, 10098990364, 20197980728]

約数ペア:

[(1, 20197980728), (2, 10098990364), (4, 5049495182), (8, 2524747591), (53, 381093976), (106, 190546988), (212, 95273494), (424, 47636747), (2143, 9425096), (4286, 4712548), (8572, 2356274), (17144, 1178137), (22229, 908632), (44458, 454316), (88916, 227158), (113579, 177832)]