12218980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 27143424

約数和(自身を除く): 14924444

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 101, 115, 202, 230, 263, 404, 460, 505, 526, 1010, 1052, 1315, 2020, 2323, 2630, 4646, 5260, 6049, 9292, 11615, 12098, 23230, 24196, 26563, 30245, 46460, 53126, 60490, 106252, 120980, 132815, 265630, 531260, 610949, 1221898, 2443796, 3054745, 6109490, 12218980]

約数ペア:

[(1, 12218980), (2, 6109490), (4, 3054745), (5, 2443796), (10, 1221898), (20, 610949), (23, 531260), (46, 265630), (92, 132815), (101, 120980), (115, 106252), (202, 60490), (230, 53126), (263, 46460), (404, 30245), (460, 26563), (505, 24196), (526, 23230), (1010, 12098), (1052, 11615), (1315, 9292), (2020, 6049), (2323, 5260), (2630, 4646)]