25044440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15271}}^1$

素因数の和:15323

約数の個数: 32

約数和(自身を含む): 57728160

約数和(自身を除く): 32683720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15271, 30542, 61084, 76355, 122168, 152710, 305420, 610840, 626111, 1252222, 2504444, 3130555, 5008888, 6261110, 12522220, 25044440]

約数ペア:

[(1, 25044440), (2, 12522220), (4, 6261110), (5, 5008888), (8, 3130555), (10, 2504444), (20, 1252222), (40, 626111), (41, 610840), (82, 305420), (164, 152710), (205, 122168), (328, 76355), (410, 61084), (820, 30542), (1640, 15271)]