90214210

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 165240000

約数和(自身を除く): 75025790

約数列:

[1, 2, 5, 10, 101, 179, 202, 358, 499, 505, 895, 998, 1010, 1790, 2495, 4990, 18079, 36158, 50399, 89321, 90395, 100798, 178642, 180790, 251995, 446605, 503990, 893210, 9021421, 18042842, 45107105, 90214210]

約数ペア:

[(1, 90214210), (2, 45107105), (5, 18042842), (10, 9021421), (101, 893210), (179, 503990), (202, 446605), (358, 251995), (499, 180790), (505, 178642), (895, 100798), (998, 90395), (1010, 89321), (1790, 50399), (2495, 36158), (4990, 18079)]