129784910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{839}}^1$

素因数の和:1376

約数の個数: 32

約数和(自身を含む): 241920000

約数和(自身を除く): 112135090

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 499, 839, 998, 1678, 2495, 4195, 4990, 8390, 15469, 26009, 30938, 52018, 77345, 130045, 154690, 260090, 418661, 837322, 2093305, 4186610, 12978491, 25956982, 64892455, 129784910]

約数ペア:

[(1, 129784910), (2, 64892455), (5, 25956982), (10, 12978491), (31, 4186610), (62, 2093305), (155, 837322), (310, 418661), (499, 260090), (839, 154690), (998, 130045), (1678, 77345), (2495, 52018), (4195, 30938), (4990, 26009), (8390, 15469)]