399859888

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{23291}}^1$

素因数の和:23365

約数の個数: 40

約数和(自身を含む): 823139280

約数和(自身を除く): 423279392

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 2146, 4292, 8584, 17168, 23291, 46582, 93164, 186328, 372656, 675439, 861767, 1350878, 1723534, 2701756, 3447068, 5403512, 6894136, 10807024, 13788272, 24991243, 49982486, 99964972, 199929944, 399859888]

約数ペア:

[(1, 399859888), (2, 199929944), (4, 99964972), (8, 49982486), (16, 24991243), (29, 13788272), (37, 10807024), (58, 6894136), (74, 5403512), (116, 3447068), (148, 2701756), (232, 1723534), (296, 1350878), (464, 861767), (592, 675439), (1073, 372656), (2146, 186328), (4292, 93164), (8584, 46582), (17168, 23291)]