8881220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 11077180

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 449, 460, 860, 898, 989, 1796, 1978, 2245, 3956, 4490, 4945, 8980, 9890, 10327, 19307, 19780, 20654, 38614, 41308, 51635, 77228, 96535, 103270, 193070, 206540, 386140, 444061, 888122, 1776244, 2220305, 4440610, 8881220]

約数ペア:

[(1, 8881220), (2, 4440610), (4, 2220305), (5, 1776244), (10, 888122), (20, 444061), (23, 386140), (43, 206540), (46, 193070), (86, 103270), (92, 96535), (115, 77228), (172, 51635), (215, 41308), (230, 38614), (430, 20654), (449, 19780), (460, 19307), (860, 10327), (898, 9890), (989, 8980), (1796, 4945), (1978, 4490), (2245, 3956)]