2502220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 6124608

約数和(自身を除く): 3622388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 293, 305, 427, 586, 610, 854, 1172, 1220, 1465, 1708, 2051, 2135, 2930, 4102, 4270, 5860, 8204, 8540, 10255, 17873, 20510, 35746, 41020, 71492, 89365, 125111, 178730, 250222, 357460, 500444, 625555, 1251110, 2502220]

約数ペア:

[(1, 2502220), (2, 1251110), (4, 625555), (5, 500444), (7, 357460), (10, 250222), (14, 178730), (20, 125111), (28, 89365), (35, 71492), (61, 41020), (70, 35746), (122, 20510), (140, 17873), (244, 10255), (293, 8540), (305, 8204), (427, 5860), (586, 4270), (610, 4102), (854, 2930), (1172, 2135), (1220, 2051), (1465, 1708)]