402008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1658

約数の個数: 16

約数和(自身を含む): 778560

約数和(自身を除く): 376552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 1621, 3242, 6484, 12968, 50251, 100502, 201004, 402008]

約数ペア:

[(1, 402008), (2, 201004), (4, 100502), (8, 50251), (31, 12968), (62, 6484), (124, 3242), (248, 1621)]