27949640

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2111}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 63106560

約数和(自身を除く): 35156920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2111, 2648, 3310, 4222, 6620, 8444, 10555, 13240, 16888, 21110, 42220, 84440, 698741, 1397482, 2794964, 3493705, 5589928, 6987410, 13974820, 27949640]

約数ペア:

[(1, 27949640), (2, 13974820), (4, 6987410), (5, 5589928), (8, 3493705), (10, 2794964), (20, 1397482), (40, 698741), (331, 84440), (662, 42220), (1324, 21110), (1655, 16888), (2111, 13240), (2648, 10555), (3310, 8444), (4222, 6620)]