69680440

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2521}}^1$

素因数の和:3223

約数の個数: 32

約数和(自身を含む): 157070160

約数和(自身を除く): 87389720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2521, 2764, 3455, 5042, 5528, 6910, 10084, 12605, 13820, 20168, 25210, 27640, 50420, 100840, 1742011, 3484022, 6968044, 8710055, 13936088, 17420110, 34840220, 69680440]

約数ペア:

[(1, 69680440), (2, 34840220), (4, 17420110), (5, 13936088), (8, 8710055), (10, 6968044), (20, 3484022), (40, 1742011), (691, 100840), (1382, 50420), (2521, 27640), (2764, 25210), (3455, 20168), (5042, 13820), (5528, 12605), (6910, 10084)]