389622320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{286487}}^1$

素因数の和:286517

約数の個数: 40

約数和(自身を含む): 959161824

約数和(自身を除く): 569539504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 286487, 572974, 1145948, 1432435, 2291896, 2864870, 4583792, 4870279, 5729740, 9740558, 11459480, 19481116, 22918960, 24351395, 38962232, 48702790, 77924464, 97405580, 194811160, 389622320]

約数ペア:

[(1, 389622320), (2, 194811160), (4, 97405580), (5, 77924464), (8, 48702790), (10, 38962232), (16, 24351395), (17, 22918960), (20, 19481116), (34, 11459480), (40, 9740558), (68, 5729740), (80, 4870279), (85, 4583792), (136, 2864870), (170, 2291896), (272, 1432435), (340, 1145948), (680, 572974), (1360, 286487)]