127911640

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{9661}}^1$

素因数の和:10003

約数の個数: 32

約数和(自身を含む): 288700560

約数和(自身を除く): 160788920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 9661, 13240, 19322, 38644, 48305, 77288, 96610, 193220, 386440, 3197791, 6395582, 12791164, 15988955, 25582328, 31977910, 63955820, 127911640]

約数ペア:

[(1, 127911640), (2, 63955820), (4, 31977910), (5, 25582328), (8, 15988955), (10, 12791164), (20, 6395582), (40, 3197791), (331, 386440), (662, 193220), (1324, 96610), (1655, 77288), (2648, 48305), (3310, 38644), (6620, 19322), (9661, 13240)]