128893702990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991490023}}^1$

素因数の和:991490043

約数の個数: 16

約数和(自身を含む): 249855486048

約数和(自身を除く): 120961783058

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 991490023, 1982980046, 4957450115, 9914900230, 12889370299, 25778740598, 64446851495, 128893702990]

約数ペア:

[(1, 128893702990), (2, 64446851495), (5, 25778740598), (10, 12889370299), (13, 9914900230), (26, 4957450115), (65, 1982980046), (130, 991490023)]