81643688

素因数分解:

$2^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3463}}^1$

素因数の和:3897

約数の個数: 32

約数和(自身を含む): 175416960

約数和(自身を除く): 93773272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 421, 842, 1684, 2947, 3368, 3463, 5894, 6926, 11788, 13852, 23576, 24241, 27704, 48482, 96964, 193928, 1457923, 2915846, 5831692, 10205461, 11663384, 20410922, 40821844, 81643688]

約数ペア:

[(1, 81643688), (2, 40821844), (4, 20410922), (7, 11663384), (8, 10205461), (14, 5831692), (28, 2915846), (56, 1457923), (421, 193928), (842, 96964), (1684, 48482), (2947, 27704), (3368, 24241), (3463, 23576), (5894, 13852), (6926, 11788)]