444440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 1028160

約数和(自身を除く): 583720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 271, 328, 410, 542, 820, 1084, 1355, 1640, 2168, 2710, 5420, 10840, 11111, 22222, 44444, 55555, 88888, 111110, 222220, 444440]

約数ペア:

[(1, 444440), (2, 222220), (4, 111110), (5, 88888), (8, 55555), (10, 44444), (20, 22222), (40, 11111), (41, 10840), (82, 5420), (164, 2710), (205, 2168), (271, 1640), (328, 1355), (410, 1084), (542, 820)]