12221960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5009}}^1$

素因数の和:5081

約数の個数: 32

約数和(自身を含む): 27955800

約数和(自身を除く): 15733840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5009, 10018, 20036, 25045, 40072, 50090, 100180, 200360, 305549, 611098, 1222196, 1527745, 2444392, 3055490, 6110980, 12221960]

約数ペア:

[(1, 12221960), (2, 6110980), (4, 3055490), (5, 2444392), (8, 1527745), (10, 1222196), (20, 611098), (40, 305549), (61, 200360), (122, 100180), (244, 50090), (305, 40072), (488, 25045), (610, 20036), (1220, 10018), (2440, 5009)]