12866120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5273}}^1$

素因数の和:5345

約数の個数: 32

約数和(自身を含む): 29428920

約数和(自身を除く): 16562800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5273, 10546, 21092, 26365, 42184, 52730, 105460, 210920, 321653, 643306, 1286612, 1608265, 2573224, 3216530, 6433060, 12866120]

約数ペア:

[(1, 12866120), (2, 6433060), (4, 3216530), (5, 2573224), (8, 1608265), (10, 1286612), (20, 643306), (40, 321653), (61, 210920), (122, 105460), (244, 52730), (305, 42184), (488, 26365), (610, 21092), (1220, 10546), (2440, 5273)]