2511282020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{122263}}^1$

素因数の和:122364

約数の個数: 48

約数和(自身を含む): 5751298560

約数和(自身を除く): 3240016540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 122263, 244526, 489052, 611315, 1222630, 1589419, 2445260, 3178838, 6357676, 7947095, 9658777, 15894190, 19317554, 31788380, 38635108, 48293885, 96587770, 125564101, 193175540, 251128202, 502256404, 627820505, 1255641010, 2511282020]

約数ペア:

[(1, 2511282020), (2, 1255641010), (4, 627820505), (5, 502256404), (10, 251128202), (13, 193175540), (20, 125564101), (26, 96587770), (52, 48293885), (65, 38635108), (79, 31788380), (130, 19317554), (158, 15894190), (260, 9658777), (316, 7947095), (395, 6357676), (790, 3178838), (1027, 2445260), (1580, 1589419), (2054, 1222630), (4108, 611315), (5135, 489052), (10270, 244526), (20540, 122263)]