145447640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279707}}^1$

素因数の和:279731

約数の個数: 32

約数和(自身を含む): 352432080

約数和(自身を除く): 206984440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 279707, 559414, 1118828, 1398535, 2237656, 2797070, 3636191, 5594140, 7272382, 11188280, 14544764, 18180955, 29089528, 36361910, 72723820, 145447640]

約数ペア:

[(1, 145447640), (2, 72723820), (4, 36361910), (5, 29089528), (8, 18180955), (10, 14544764), (13, 11188280), (20, 7272382), (26, 5594140), (40, 3636191), (52, 2797070), (65, 2237656), (104, 1398535), (130, 1118828), (260, 559414), (520, 279707)]