251056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 40

約数和(自身を含む): 562464

約数和(自身を除く): 311408

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 71, 104, 136, 142, 208, 221, 272, 284, 442, 568, 884, 923, 1136, 1207, 1768, 1846, 2414, 3536, 3692, 4828, 7384, 9656, 14768, 15691, 19312, 31382, 62764, 125528, 251056]

約数ペア:

[(1, 251056), (2, 125528), (4, 62764), (8, 31382), (13, 19312), (16, 15691), (17, 14768), (26, 9656), (34, 7384), (52, 4828), (68, 3692), (71, 3536), (104, 2414), (136, 1846), (142, 1768), (208, 1207), (221, 1136), (272, 923), (284, 884), (442, 568)]