391844140

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{1531}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 840075264

約数和(自身を除く): 448231124

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 191, 268, 335, 382, 670, 764, 955, 1340, 1531, 1910, 3062, 3820, 6124, 7655, 12797, 15310, 25594, 30620, 51188, 63985, 102577, 127970, 205154, 255940, 292421, 410308, 512885, 584842, 1025770, 1169684, 1462105, 2051540, 2924210, 5848420, 19592207, 39184414, 78368828, 97961035, 195922070, 391844140]

約数ペア:

[(1, 391844140), (2, 195922070), (4, 97961035), (5, 78368828), (10, 39184414), (20, 19592207), (67, 5848420), (134, 2924210), (191, 2051540), (268, 1462105), (335, 1169684), (382, 1025770), (670, 584842), (764, 512885), (955, 410308), (1340, 292421), (1531, 255940), (1910, 205154), (3062, 127970), (3820, 102577), (6124, 63985), (7655, 51188), (12797, 30620), (15310, 25594)]