1881400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 4575600

約数和(自身を除く): 2694200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 409, 460, 575, 818, 920, 1150, 1636, 2045, 2300, 3272, 4090, 4600, 8180, 9407, 10225, 16360, 18814, 20450, 37628, 40900, 47035, 75256, 81800, 94070, 188140, 235175, 376280, 470350, 940700, 1881400]

約数ペア:

[(1, 1881400), (2, 940700), (4, 470350), (5, 376280), (8, 235175), (10, 188140), (20, 94070), (23, 81800), (25, 75256), (40, 47035), (46, 40900), (50, 37628), (92, 20450), (100, 18814), (115, 16360), (184, 10225), (200, 9407), (230, 8180), (409, 4600), (460, 4090), (575, 3272), (818, 2300), (920, 2045), (1150, 1636)]