81316340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{3041}}^1$

素因数の和:3248

約数の個数: 48

約数和(自身を含む): 196245504

約数和(自身を除く): 114929164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1337, 1910, 2674, 3041, 3820, 5348, 6082, 6685, 12164, 13370, 15205, 21287, 26740, 30410, 42574, 60820, 85148, 106435, 212870, 425740, 580831, 1161662, 2323324, 2904155, 4065817, 5808310, 8131634, 11616620, 16263268, 20329085, 40658170, 81316340]

約数ペア:

[(1, 81316340), (2, 40658170), (4, 20329085), (5, 16263268), (7, 11616620), (10, 8131634), (14, 5808310), (20, 4065817), (28, 2904155), (35, 2323324), (70, 1161662), (140, 580831), (191, 425740), (382, 212870), (764, 106435), (955, 85148), (1337, 60820), (1910, 42574), (2674, 30410), (3041, 26740), (3820, 21287), (5348, 15205), (6082, 13370), (6685, 12164)]