65427160

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4079}}^1$

素因数の和:4491

約数の個数: 32

約数和(自身を含む): 147614400

約数和(自身を除く): 82187240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 4079, 8020, 8158, 16040, 16316, 20395, 32632, 40790, 81580, 163160, 1635679, 3271358, 6542716, 8178395, 13085432, 16356790, 32713580, 65427160]

約数ペア:

[(1, 65427160), (2, 32713580), (4, 16356790), (5, 13085432), (8, 8178395), (10, 6542716), (20, 3271358), (40, 1635679), (401, 163160), (802, 81580), (1604, 40790), (2005, 32632), (3208, 20395), (4010, 16316), (4079, 16040), (8020, 8158)]