127907260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491951}}^1$

素因数の和:491973

約数の個数: 24

約数和(自身を含む): 289267776

約数和(自身を除く): 161360516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491951, 983902, 1967804, 2459755, 4919510, 6395363, 9839020, 12790726, 25581452, 31976815, 63953630, 127907260]

約数ペア:

[(1, 127907260), (2, 63953630), (4, 31976815), (5, 25581452), (10, 12790726), (13, 9839020), (20, 6395363), (26, 4919510), (52, 2459755), (65, 1967804), (130, 983902), (260, 491951)]