19992791105

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{762647}}^1$

素因数の和:762773

約数の個数: 24

約数和(自身を含む): 28169166528

約数和(自身を除く): 8176375423

約数列:

[1, 5, 7, 35, 49, 107, 245, 535, 749, 3745, 5243, 26215, 762647, 3813235, 5338529, 26692645, 37369703, 81603229, 186848515, 408016145, 571222603, 2856113015, 3998558221, 19992791105]

約数ペア:

[(1, 19992791105), (5, 3998558221), (7, 2856113015), (35, 571222603), (49, 408016145), (107, 186848515), (245, 81603229), (535, 37369703), (749, 26692645), (3745, 5338529), (5243, 3813235), (26215, 762647)]