278947864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{421}}^1$

素因数の和:740

約数の個数: 64

約数和(自身を含む): 591272640

約数和(自身を除く): 312324776

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 184, 277, 299, 421, 554, 598, 842, 1108, 1196, 1684, 2216, 2392, 3368, 3601, 5473, 6371, 7202, 9683, 10946, 12742, 14404, 19366, 21892, 25484, 28808, 38732, 43784, 50968, 77464, 82823, 116617, 125879, 165646, 233234, 251758, 331292, 466468, 503516, 662584, 932936, 1007032, 1516021, 2682191, 3032042, 5364382, 6064084, 10728764, 12128168, 21457528, 34868483, 69736966, 139473932, 278947864]

約数ペア:

[(1, 278947864), (2, 139473932), (4, 69736966), (8, 34868483), (13, 21457528), (23, 12128168), (26, 10728764), (46, 6064084), (52, 5364382), (92, 3032042), (104, 2682191), (184, 1516021), (277, 1007032), (299, 932936), (421, 662584), (554, 503516), (598, 466468), (842, 331292), (1108, 251758), (1196, 233234), (1684, 165646), (2216, 125879), (2392, 116617), (3368, 82823), (3601, 77464), (5473, 50968), (6371, 43784), (7202, 38732), (9683, 28808), (10946, 25484), (12742, 21892), (14404, 19366)]