1018177640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{1277}}^1$

素因数の和:1962

約数の個数: 64

約数和(自身を含む): 2370332160

約数和(自身を除く): 1352154520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 643, 1240, 1277, 1286, 2554, 2572, 3215, 5108, 5144, 6385, 6430, 10216, 12770, 12860, 19933, 25540, 25720, 39587, 39866, 51080, 79174, 79732, 99665, 158348, 159464, 197935, 199330, 316696, 395870, 398660, 791740, 797320, 821111, 1583480, 1642222, 3284444, 4105555, 6568888, 8211110, 16422220, 25454441, 32844440, 50908882, 101817764, 127272205, 203635528, 254544410, 509088820, 1018177640]

約数ペア:

[(1, 1018177640), (2, 509088820), (4, 254544410), (5, 203635528), (8, 127272205), (10, 101817764), (20, 50908882), (31, 32844440), (40, 25454441), (62, 16422220), (124, 8211110), (155, 6568888), (248, 4105555), (310, 3284444), (620, 1642222), (643, 1583480), (1240, 821111), (1277, 797320), (1286, 791740), (2554, 398660), (2572, 395870), (3215, 316696), (5108, 199330), (5144, 197935), (6385, 159464), (6430, 158348), (10216, 99665), (12770, 79732), (12860, 79174), (19933, 51080), (25540, 39866), (25720, 39587)]