1399438240

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{213329}}^1$

素因数の和:213385

約数の個数: 48

約数和(自身を含む): 3386827080

約数和(自身を除く): 1987388840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 213329, 426658, 853316, 1066645, 1706632, 2133290, 3413264, 4266580, 6826528, 8533160, 8746489, 17066320, 17492978, 34132640, 34985956, 43732445, 69971912, 87464890, 139943824, 174929780, 279887648, 349859560, 699719120, 1399438240]

約数ペア:

[(1, 1399438240), (2, 699719120), (4, 349859560), (5, 279887648), (8, 174929780), (10, 139943824), (16, 87464890), (20, 69971912), (32, 43732445), (40, 34985956), (41, 34132640), (80, 17492978), (82, 17066320), (160, 8746489), (164, 8533160), (205, 6826528), (328, 4266580), (410, 3413264), (656, 2133290), (820, 1706632), (1312, 1066645), (1640, 853316), (3280, 426658), (6560, 213329)]