402428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 776160

約数和(自身を除く): 373732

約数列:

[1, 2, 4, 13, 26, 52, 71, 109, 142, 218, 284, 436, 923, 1417, 1846, 2834, 3692, 5668, 7739, 15478, 30956, 100607, 201214, 402428]

約数ペア:

[(1, 402428), (2, 201214), (4, 100607), (13, 30956), (26, 15478), (52, 7739), (71, 5668), (109, 3692), (142, 2834), (218, 1846), (284, 1417), (436, 923)]