815426680

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{36209}}^1$

素因数の和:36783

約数の個数: 32

約数和(自身を含む): 1838019600

約数和(自身を除く): 1022592920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 4504, 5630, 11260, 22520, 36209, 72418, 144836, 181045, 289672, 362090, 724180, 1448360, 20385667, 40771334, 81542668, 101928335, 163085336, 203856670, 407713340, 815426680]

約数ペア:

[(1, 815426680), (2, 407713340), (4, 203856670), (5, 163085336), (8, 101928335), (10, 81542668), (20, 40771334), (40, 20385667), (563, 1448360), (1126, 724180), (2252, 362090), (2815, 289672), (4504, 181045), (5630, 144836), (11260, 72418), (22520, 36209)]