128050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:222

約数の個数: 24

約数和(自身を含む): 257796

約数和(自身を除く): 129746

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 197, 325, 394, 650, 985, 1970, 2561, 4925, 5122, 9850, 12805, 25610, 64025, 128050]

約数ペア:

[(1, 128050), (2, 64025), (5, 25610), (10, 12805), (13, 9850), (25, 5122), (26, 4925), (50, 2561), (65, 1970), (130, 985), (197, 650), (325, 394)]