1279720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 3265920

約数和(自身を除く): 1986200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 107, 115, 130, 184, 214, 230, 260, 299, 428, 460, 520, 535, 598, 856, 920, 1070, 1196, 1391, 1495, 2140, 2392, 2461, 2782, 2990, 4280, 4922, 5564, 5980, 6955, 9844, 11128, 11960, 12305, 13910, 19688, 24610, 27820, 31993, 49220, 55640, 63986, 98440, 127972, 159965, 255944, 319930, 639860, 1279720]

約数ペア:

[(1, 1279720), (2, 639860), (4, 319930), (5, 255944), (8, 159965), (10, 127972), (13, 98440), (20, 63986), (23, 55640), (26, 49220), (40, 31993), (46, 27820), (52, 24610), (65, 19688), (92, 13910), (104, 12305), (107, 11960), (115, 11128), (130, 9844), (184, 6955), (214, 5980), (230, 5564), (260, 4922), (299, 4280), (428, 2990), (460, 2782), (520, 2461), (535, 2392), (598, 2140), (856, 1495), (920, 1391), (1070, 1196)]