181507160

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{13709}}^1$

素因数の和:14051

約数の個数: 32

約数和(自身を含む): 409654800

約数和(自身を除く): 228147640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 13240, 13709, 27418, 54836, 68545, 109672, 137090, 274180, 548360, 4537679, 9075358, 18150716, 22688395, 36301432, 45376790, 90753580, 181507160]

約数ペア:

[(1, 181507160), (2, 90753580), (4, 45376790), (5, 36301432), (8, 22688395), (10, 18150716), (20, 9075358), (40, 4537679), (331, 548360), (662, 274180), (1324, 137090), (1655, 109672), (2648, 68545), (3310, 54836), (6620, 27418), (13240, 13709)]