18062960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5507}}^1$

素因数の和:5561

約数の個数: 40

約数和(自身を含む): 43028496

約数和(自身を除く): 24965536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5507, 11014, 22028, 27535, 44056, 55070, 88112, 110140, 220280, 225787, 440560, 451574, 903148, 1128935, 1806296, 2257870, 3612592, 4515740, 9031480, 18062960]

約数ペア:

[(1, 18062960), (2, 9031480), (4, 4515740), (5, 3612592), (8, 2257870), (10, 1806296), (16, 1128935), (20, 903148), (40, 451574), (41, 440560), (80, 225787), (82, 220280), (164, 110140), (205, 88112), (328, 55070), (410, 44056), (656, 27535), (820, 22028), (1640, 11014), (3280, 5507)]