286840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 660960

約数和(自身を除く): 374120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 101, 142, 202, 284, 355, 404, 505, 568, 710, 808, 1010, 1420, 2020, 2840, 4040, 7171, 14342, 28684, 35855, 57368, 71710, 143420, 286840]

約数ペア:

[(1, 286840), (2, 143420), (4, 71710), (5, 57368), (8, 35855), (10, 28684), (20, 14342), (40, 7171), (71, 4040), (101, 2840), (142, 2020), (202, 1420), (284, 1010), (355, 808), (404, 710), (505, 568)]