865163984

素因数分解:

$2^4\times {\mathrm{1399}}^1\times {\mathrm{38651}}^1$

素因数の和:40058

約数の個数: 20

約数和(自身を含む): 1677496800

約数和(自身を除く): 812332816

約数列:

[1, 2, 4, 8, 16, 1399, 2798, 5596, 11192, 22384, 38651, 77302, 154604, 309208, 618416, 54072749, 108145498, 216290996, 432581992, 865163984]

約数ペア:

[(1, 865163984), (2, 432581992), (4, 216290996), (8, 108145498), (16, 54072749), (1399, 618416), (2798, 309208), (5596, 154604), (11192, 77302), (22384, 38651)]