180189040

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5507}}^1$

素因数の和:5929

約数の個数: 40

約数和(自身を含む): 420040080

約数和(自身を除く): 239851040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 5507, 6544, 8180, 11014, 16360, 22028, 27535, 32720, 44056, 55070, 88112, 110140, 220280, 440560, 2252363, 4504726, 9009452, 11261815, 18018904, 22523630, 36037808, 45047260, 90094520, 180189040]

約数ペア:

[(1, 180189040), (2, 90094520), (4, 45047260), (5, 36037808), (8, 22523630), (10, 18018904), (16, 11261815), (20, 9009452), (40, 4504726), (80, 2252363), (409, 440560), (818, 220280), (1636, 110140), (2045, 88112), (3272, 55070), (4090, 44056), (5507, 32720), (6544, 27535), (8180, 22028), (11014, 16360)]