81419864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1193}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 161190000

約数和(自身を除く): 79770136

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 449, 898, 1193, 1796, 2386, 3592, 4772, 8531, 9544, 17062, 22667, 34124, 45334, 68248, 90668, 181336, 535657, 1071314, 2142628, 4285256, 10177483, 20354966, 40709932, 81419864]

約数ペア:

[(1, 81419864), (2, 40709932), (4, 20354966), (8, 10177483), (19, 4285256), (38, 2142628), (76, 1071314), (152, 535657), (449, 181336), (898, 90668), (1193, 68248), (1796, 45334), (2386, 34124), (3592, 22667), (4772, 17062), (8531, 9544)]