2228920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 5073120

約数和(自身を除く): 2844200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 541, 824, 1030, 1082, 2060, 2164, 2705, 4120, 4328, 5410, 10820, 21640, 55723, 111446, 222892, 278615, 445784, 557230, 1114460, 2228920]

約数ペア:

[(1, 2228920), (2, 1114460), (4, 557230), (5, 445784), (8, 278615), (10, 222892), (20, 111446), (40, 55723), (103, 21640), (206, 10820), (412, 5410), (515, 4328), (541, 4120), (824, 2705), (1030, 2164), (1082, 2060)]