2493140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 5795328

約数和(自身を除く): 3302188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 223, 260, 430, 446, 559, 860, 892, 1115, 1118, 2230, 2236, 2795, 2899, 4460, 5590, 5798, 9589, 11180, 11596, 14495, 19178, 28990, 38356, 47945, 57980, 95890, 124657, 191780, 249314, 498628, 623285, 1246570, 2493140]

約数ペア:

[(1, 2493140), (2, 1246570), (4, 623285), (5, 498628), (10, 249314), (13, 191780), (20, 124657), (26, 95890), (43, 57980), (52, 47945), (65, 38356), (86, 28990), (130, 19178), (172, 14495), (215, 11596), (223, 11180), (260, 9589), (430, 5798), (446, 5590), (559, 4460), (860, 2899), (892, 2795), (1115, 2236), (1118, 2230)]