127153520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122263}}^1$

素因数の和:122289

約数の個数: 40

約数和(自身を含む): 318375456

約数和(自身を除く): 191221936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 122263, 244526, 489052, 611315, 978104, 1222630, 1589419, 1956208, 2445260, 3178838, 4890520, 6357676, 7947095, 9781040, 12715352, 15894190, 25430704, 31788380, 63576760, 127153520]

約数ペア:

[(1, 127153520), (2, 63576760), (4, 31788380), (5, 25430704), (8, 15894190), (10, 12715352), (13, 9781040), (16, 7947095), (20, 6357676), (26, 4890520), (40, 3178838), (52, 2445260), (65, 1956208), (80, 1589419), (104, 1222630), (130, 978104), (208, 611315), (260, 489052), (520, 244526), (1040, 122263)]