250520010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{642359}}^1$

素因数の和:642382

約数の個数: 32

約数和(自身を含む): 647498880

約数和(自身を除く): 396978870

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 642359, 1284718, 1927077, 3211795, 3854154, 6423590, 8350667, 9635385, 16701334, 19270770, 25052001, 41753335, 50104002, 83506670, 125260005, 250520010]

約数ペア:

[(1, 250520010), (2, 125260005), (3, 83506670), (5, 50104002), (6, 41753335), (10, 25052001), (13, 19270770), (15, 16701334), (26, 9635385), (30, 8350667), (39, 6423590), (65, 3854154), (78, 3211795), (130, 1927077), (195, 1284718), (390, 642359)]