18803640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2207}}^1$

素因数の和:2292

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 38427720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2207, 2840, 4260, 4414, 6621, 8520, 8828, 11035, 13242, 17656, 22070, 26484, 33105, 44140, 52968, 66210, 88280, 132420, 156697, 264840, 313394, 470091, 626788, 783485, 940182, 1253576, 1566970, 1880364, 2350455, 3133940, 3760728, 4700910, 6267880, 9401820, 18803640]

約数ペア:

[(1, 18803640), (2, 9401820), (3, 6267880), (4, 4700910), (5, 3760728), (6, 3133940), (8, 2350455), (10, 1880364), (12, 1566970), (15, 1253576), (20, 940182), (24, 783485), (30, 626788), (40, 470091), (60, 313394), (71, 264840), (120, 156697), (142, 132420), (213, 88280), (284, 66210), (355, 52968), (426, 44140), (568, 33105), (710, 26484), (852, 22070), (1065, 17656), (1420, 13242), (1704, 11035), (2130, 8828), (2207, 8520), (2840, 6621), (4260, 4414)]