20005360

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8623}}^1$

素因数の和:8665

約数の個数: 40

約数和(自身を含む): 48121920

約数和(自身を除く): 28116560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8623, 17246, 34492, 43115, 68984, 86230, 137968, 172460, 250067, 344920, 500134, 689840, 1000268, 1250335, 2000536, 2500670, 4001072, 5001340, 10002680, 20005360]

約数ペア:

[(1, 20005360), (2, 10002680), (4, 5001340), (5, 4001072), (8, 2500670), (10, 2000536), (16, 1250335), (20, 1000268), (29, 689840), (40, 500134), (58, 344920), (80, 250067), (116, 172460), (145, 137968), (232, 86230), (290, 68984), (464, 43115), (580, 34492), (1160, 17246), (2320, 8623)]