2491640

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{373}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 5654880

約数和(自身を除く): 3163240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 373, 668, 746, 835, 1336, 1492, 1670, 1865, 2984, 3340, 3730, 6680, 7460, 14920, 62291, 124582, 249164, 311455, 498328, 622910, 1245820, 2491640]

約数ペア:

[(1, 2491640), (2, 1245820), (4, 622910), (5, 498328), (8, 311455), (10, 249164), (20, 124582), (40, 62291), (167, 14920), (334, 7460), (373, 6680), (668, 3730), (746, 3340), (835, 2984), (1336, 1865), (1492, 1670)]