130199620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{106721}}^1$

素因数の和:106791

約数の個数: 24

約数和(自身を含む): 277904088

約数和(自身を除く): 147704468

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 106721, 213442, 426884, 533605, 1067210, 2134420, 6509981, 13019962, 26039924, 32549905, 65099810, 130199620]

約数ペア:

[(1, 130199620), (2, 65099810), (4, 32549905), (5, 26039924), (10, 13019962), (20, 6509981), (61, 2134420), (122, 1067210), (244, 533605), (305, 426884), (610, 213442), (1220, 106721)]