20178091505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28221107}}^1$

素因数の和:28221136

約数の個数: 16

約数和(自身を含む): 28446876864

約数和(自身を除く): 8268785359

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28221107, 141105535, 310432177, 366874391, 1552160885, 1834371955, 4035618301, 20178091505]

約数ペア:

[(1, 20178091505), (5, 4035618301), (11, 1834371955), (13, 1552160885), (55, 366874391), (65, 310432177), (143, 141105535), (715, 28221107)]