20229416720

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{198017}}^1$

素因数の和:199307

約数の個数: 40

約数和(自身を含む): 47070462744

約数和(自身を除く): 26841046024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 2554, 5108, 6385, 10216, 12770, 20432, 25540, 51080, 102160, 198017, 396034, 792068, 990085, 1584136, 1980170, 3168272, 3960340, 7920680, 15841360, 252867709, 505735418, 1011470836, 1264338545, 2022941672, 2528677090, 4045883344, 5057354180, 10114708360, 20229416720]

約数ペア:

[(1, 20229416720), (2, 10114708360), (4, 5057354180), (5, 4045883344), (8, 2528677090), (10, 2022941672), (16, 1264338545), (20, 1011470836), (40, 505735418), (80, 252867709), (1277, 15841360), (2554, 7920680), (5108, 3960340), (6385, 3168272), (10216, 1980170), (12770, 1584136), (20432, 990085), (25540, 792068), (51080, 396034), (102160, 198017)]