20173240

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1861}}^1$

素因数の和:2143

約数の個数: 32

約数和(自身を含む): 45581760

約数和(自身を除く): 25408520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1861, 2168, 2710, 3722, 5420, 7444, 9305, 10840, 14888, 18610, 37220, 74440, 504331, 1008662, 2017324, 2521655, 4034648, 5043310, 10086620, 20173240]

約数ペア:

[(1, 20173240), (2, 10086620), (4, 5043310), (5, 4034648), (8, 2521655), (10, 2017324), (20, 1008662), (40, 504331), (271, 74440), (542, 37220), (1084, 18610), (1355, 14888), (1861, 10840), (2168, 9305), (2710, 7444), (3722, 5420)]