1290250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 2607696

約数和(自身を除く): 1317446

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 397, 650, 794, 1625, 1985, 3250, 3970, 5161, 9925, 10322, 19850, 25805, 49625, 51610, 99250, 129025, 258050, 645125, 1290250]

約数ペア:

[(1, 1290250), (2, 645125), (5, 258050), (10, 129025), (13, 99250), (25, 51610), (26, 49625), (50, 25805), (65, 19850), (125, 10322), (130, 9925), (250, 5161), (325, 3970), (397, 3250), (650, 1985), (794, 1625)]