63940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 141120

約数和(自身を除く): 77180

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 460, 556, 695, 1390, 2780, 3197, 6394, 12788, 15985, 31970, 63940]

約数ペア:

[(1, 63940), (2, 31970), (4, 15985), (5, 12788), (10, 6394), (20, 3197), (23, 2780), (46, 1390), (92, 695), (115, 556), (139, 460), (230, 278)]