65816440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16963}}^1$

素因数の和:17071

約数の個数: 32

約数和(自身を含む): 149622480

約数和(自身を除く): 83806040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 16963, 33926, 67852, 84815, 135704, 169630, 339260, 678520, 1645411, 3290822, 6581644, 8227055, 13163288, 16454110, 32908220, 65816440]

約数ペア:

[(1, 65816440), (2, 32908220), (4, 16454110), (5, 13163288), (8, 8227055), (10, 6581644), (20, 3290822), (40, 1645411), (97, 678520), (194, 339260), (388, 169630), (485, 135704), (776, 84815), (970, 67852), (1940, 33926), (3880, 16963)]