405738145

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{4019}}^1$

素因数の和:4416

約数の個数: 16

約数和(自身を含む): 496486080

約数和(自身を除く): 90747935

約数列:

[1, 5, 61, 305, 331, 1655, 4019, 20095, 20191, 100955, 245159, 1225795, 1330289, 6651445, 81147629, 405738145]

約数ペア:

[(1, 405738145), (5, 81147629), (61, 6651445), (305, 1330289), (331, 1225795), (1655, 245159), (4019, 100955), (20095, 20191)]