30351890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 56412720

約数和(自身を除く): 26060830

約数列:

[1, 2, 5, 10, 41, 82, 181, 205, 362, 409, 410, 818, 905, 1810, 2045, 4090, 7421, 14842, 16769, 33538, 37105, 74029, 74210, 83845, 148058, 167690, 370145, 740290, 3035189, 6070378, 15175945, 30351890]

約数ペア:

[(1, 30351890), (2, 15175945), (5, 6070378), (10, 3035189), (41, 740290), (82, 370145), (181, 167690), (205, 148058), (362, 83845), (409, 74210), (410, 74029), (818, 37105), (905, 33538), (1810, 16769), (2045, 14842), (4090, 7421)]