64270340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{31817}}^1$

素因数の和:31927

約数の個数: 24

約数和(自身を含む): 136308312

約数和(自身を除く): 72037972

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 31817, 63634, 127268, 159085, 318170, 636340, 3213517, 6427034, 12854068, 16067585, 32135170, 64270340]

約数ペア:

[(1, 64270340), (2, 32135170), (4, 16067585), (5, 12854068), (10, 6427034), (20, 3213517), (101, 636340), (202, 318170), (404, 159085), (505, 127268), (1010, 63634), (2020, 31817)]