13210040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2521}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 29961360

約数和(自身を除く): 16751320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2521, 2620, 5042, 5240, 10084, 12605, 20168, 25210, 50420, 100840, 330251, 660502, 1321004, 1651255, 2642008, 3302510, 6605020, 13210040]

約数ペア:

[(1, 13210040), (2, 6605020), (4, 3302510), (5, 2642008), (8, 1651255), (10, 1321004), (20, 660502), (40, 330251), (131, 100840), (262, 50420), (524, 25210), (655, 20168), (1048, 12605), (1310, 10084), (2521, 5240), (2620, 5042)]