26617960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10909}}^1$

素因数の和:10981

約数の個数: 32

約数和(自身を含む): 60877800

約数和(自身を除く): 34259840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10909, 21818, 43636, 54545, 87272, 109090, 218180, 436360, 665449, 1330898, 2661796, 3327245, 5323592, 6654490, 13308980, 26617960]

約数ペア:

[(1, 26617960), (2, 13308980), (4, 6654490), (5, 5323592), (8, 3327245), (10, 2661796), (20, 1330898), (40, 665449), (61, 436360), (122, 218180), (244, 109090), (305, 87272), (488, 54545), (610, 43636), (1220, 21818), (2440, 10909)]