7900880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 20248704

約数和(自身を除く): 12347824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 107, 130, 142, 208, 214, 260, 284, 355, 428, 520, 535, 568, 710, 856, 923, 1040, 1070, 1136, 1391, 1420, 1712, 1846, 2140, 2782, 2840, 3692, 4280, 4615, 5564, 5680, 6955, 7384, 7597, 8560, 9230, 11128, 13910, 14768, 15194, 18460, 22256, 27820, 30388, 36920, 37985, 55640, 60776, 73840, 75970, 98761, 111280, 121552, 151940, 197522, 303880, 395044, 493805, 607760, 790088, 987610, 1580176, 1975220, 3950440, 7900880]

約数ペア:

[(1, 7900880), (2, 3950440), (4, 1975220), (5, 1580176), (8, 987610), (10, 790088), (13, 607760), (16, 493805), (20, 395044), (26, 303880), (40, 197522), (52, 151940), (65, 121552), (71, 111280), (80, 98761), (104, 75970), (107, 73840), (130, 60776), (142, 55640), (208, 37985), (214, 36920), (260, 30388), (284, 27820), (355, 22256), (428, 18460), (520, 15194), (535, 14768), (568, 13910), (710, 11128), (856, 9230), (923, 8560), (1040, 7597), (1070, 7384), (1136, 6955), (1391, 5680), (1420, 5564), (1712, 4615), (1846, 4280), (2140, 3692), (2782, 2840)]