18821200

素因数分解:

$2^4\times 5^2\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:452

約数の個数: 60

約数和(自身を含む): 45635968

約数和(自身を除く): 26814768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 211, 223, 400, 422, 446, 844, 892, 1055, 1115, 1688, 1784, 2110, 2230, 3376, 3568, 4220, 4460, 5275, 5575, 8440, 8920, 10550, 11150, 16880, 17840, 21100, 22300, 42200, 44600, 47053, 84400, 89200, 94106, 188212, 235265, 376424, 470530, 752848, 941060, 1176325, 1882120, 2352650, 3764240, 4705300, 9410600, 18821200]

約数ペア:

[(1, 18821200), (2, 9410600), (4, 4705300), (5, 3764240), (8, 2352650), (10, 1882120), (16, 1176325), (20, 941060), (25, 752848), (40, 470530), (50, 376424), (80, 235265), (100, 188212), (200, 94106), (211, 89200), (223, 84400), (400, 47053), (422, 44600), (446, 42200), (844, 22300), (892, 21100), (1055, 17840), (1115, 16880), (1688, 11150), (1784, 10550), (2110, 8920), (2230, 8440), (3376, 5575), (3568, 5275), (4220, 4460)]