1999610320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{861901}}^1$

素因数の和:861943

約数の個数: 40

約数和(自身を含む): 4809413160

約数和(自身を除く): 2809802840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 861901, 1723802, 3447604, 4309505, 6895208, 8619010, 13790416, 17238020, 24995129, 34476040, 49990258, 68952080, 99980516, 124975645, 199961032, 249951290, 399922064, 499902580, 999805160, 1999610320]

約数ペア:

[(1, 1999610320), (2, 999805160), (4, 499902580), (5, 399922064), (8, 249951290), (10, 199961032), (16, 124975645), (20, 99980516), (29, 68952080), (40, 49990258), (58, 34476040), (80, 24995129), (116, 17238020), (145, 13790416), (232, 8619010), (290, 6895208), (464, 4309505), (580, 3447604), (1160, 1723802), (2320, 861901)]