157039820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2153}}^1$

素因数の和:2690

約数の個数: 48

約数和(自身を含む): 377794368

約数和(自身を除く): 220754548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2153, 2605, 3647, 4306, 5210, 7294, 8612, 10420, 10765, 14588, 15071, 18235, 21530, 30142, 36470, 43060, 60284, 72940, 75355, 150710, 301420, 1121713, 2243426, 4486852, 5608565, 7851991, 11217130, 15703982, 22434260, 31407964, 39259955, 78519910, 157039820]

約数ペア:

[(1, 157039820), (2, 78519910), (4, 39259955), (5, 31407964), (7, 22434260), (10, 15703982), (14, 11217130), (20, 7851991), (28, 5608565), (35, 4486852), (70, 2243426), (140, 1121713), (521, 301420), (1042, 150710), (2084, 75355), (2153, 72940), (2605, 60284), (3647, 43060), (4306, 36470), (5210, 30142), (7294, 21530), (8612, 18235), (10420, 15071), (10765, 14588)]