20665560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172213}}^1$

素因数の和:172227

約数の個数: 32

約数和(自身を含む): 61997040

約数和(自身を除く): 41331480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172213, 344426, 516639, 688852, 861065, 1033278, 1377704, 1722130, 2066556, 2583195, 3444260, 4133112, 5166390, 6888520, 10332780, 20665560]

約数ペア:

[(1, 20665560), (2, 10332780), (3, 6888520), (4, 5166390), (5, 4133112), (6, 3444260), (8, 2583195), (10, 2066556), (12, 1722130), (15, 1377704), (20, 1033278), (24, 861065), (30, 688852), (40, 516639), (60, 344426), (120, 172213)]