25011640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 58605120

約数和(自身を除く): 33593480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 101, 151, 164, 202, 205, 302, 328, 404, 410, 505, 604, 755, 808, 820, 1010, 1208, 1510, 1640, 2020, 3020, 4040, 4141, 6040, 6191, 8282, 12382, 15251, 16564, 20705, 24764, 30502, 30955, 33128, 41410, 49528, 61004, 61910, 76255, 82820, 122008, 123820, 152510, 165640, 247640, 305020, 610040, 625291, 1250582, 2501164, 3126455, 5002328, 6252910, 12505820, 25011640]

約数ペア:

[(1, 25011640), (2, 12505820), (4, 6252910), (5, 5002328), (8, 3126455), (10, 2501164), (20, 1250582), (40, 625291), (41, 610040), (82, 305020), (101, 247640), (151, 165640), (164, 152510), (202, 123820), (205, 122008), (302, 82820), (328, 76255), (404, 61910), (410, 61004), (505, 49528), (604, 41410), (755, 33128), (808, 30955), (820, 30502), (1010, 24764), (1208, 20705), (1510, 16564), (1640, 15251), (2020, 12382), (3020, 8282), (4040, 6191), (4141, 6040)]