401996895

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1\times {\mathrm{1249}}^1$

素因数の和:1799

約数の個数: 32

約数和(自身を含む): 660000000

約数和(自身を除く): 258003105

約数列:

[1, 3, 5, 15, 43, 129, 215, 499, 645, 1249, 1497, 2495, 3747, 6245, 7485, 18735, 21457, 53707, 64371, 107285, 161121, 268535, 321855, 623251, 805605, 1869753, 3116255, 9348765, 26799793, 80399379, 133998965, 401996895]

約数ペア:

[(1, 401996895), (3, 133998965), (5, 80399379), (15, 26799793), (43, 9348765), (129, 3116255), (215, 1869753), (499, 805605), (645, 623251), (1249, 321855), (1497, 268535), (2495, 161121), (3747, 107285), (6245, 64371), (7485, 53707), (18735, 21457)]