129799480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104677}}^1$

素因数の和:104719

約数の個数: 32

約数和(自身を含む): 301472640

約数和(自身を除く): 171673160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 104677, 209354, 418708, 523385, 837416, 1046770, 2093540, 3244987, 4187080, 6489974, 12979948, 16224935, 25959896, 32449870, 64899740, 129799480]

約数ペア:

[(1, 129799480), (2, 64899740), (4, 32449870), (5, 25959896), (8, 16224935), (10, 12979948), (20, 6489974), (31, 4187080), (40, 3244987), (62, 2093540), (124, 1046770), (155, 837416), (248, 523385), (310, 418708), (620, 209354), (1240, 104677)]