2559440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:156

約数の個数: 80

約数和(自身を含む): 6749568

約数和(自身を除く): 4190128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 107, 115, 130, 184, 208, 214, 230, 260, 299, 368, 428, 460, 520, 535, 598, 856, 920, 1040, 1070, 1196, 1391, 1495, 1712, 1840, 2140, 2392, 2461, 2782, 2990, 4280, 4784, 4922, 5564, 5980, 6955, 8560, 9844, 11128, 11960, 12305, 13910, 19688, 22256, 23920, 24610, 27820, 31993, 39376, 49220, 55640, 63986, 98440, 111280, 127972, 159965, 196880, 255944, 319930, 511888, 639860, 1279720, 2559440]

約数ペア:

[(1, 2559440), (2, 1279720), (4, 639860), (5, 511888), (8, 319930), (10, 255944), (13, 196880), (16, 159965), (20, 127972), (23, 111280), (26, 98440), (40, 63986), (46, 55640), (52, 49220), (65, 39376), (80, 31993), (92, 27820), (104, 24610), (107, 23920), (115, 22256), (130, 19688), (184, 13910), (208, 12305), (214, 11960), (230, 11128), (260, 9844), (299, 8560), (368, 6955), (428, 5980), (460, 5564), (520, 4922), (535, 4784), (598, 4280), (856, 2990), (920, 2782), (1040, 2461), (1070, 2392), (1196, 2140), (1391, 1840), (1495, 1712)]