20182180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{307}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 45017280

約数和(自身を除く): 24835100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 307, 346, 380, 614, 692, 865, 1228, 1535, 1730, 3070, 3287, 3460, 5833, 6140, 6574, 11666, 13148, 16435, 23332, 29165, 32870, 53111, 58330, 65740, 106222, 116660, 212444, 265555, 531110, 1009109, 1062220, 2018218, 4036436, 5045545, 10091090, 20182180]

約数ペア:

[(1, 20182180), (2, 10091090), (4, 5045545), (5, 4036436), (10, 2018218), (19, 1062220), (20, 1009109), (38, 531110), (76, 265555), (95, 212444), (173, 116660), (190, 106222), (307, 65740), (346, 58330), (380, 53111), (614, 32870), (692, 29165), (865, 23332), (1228, 16435), (1535, 13148), (1730, 11666), (3070, 6574), (3287, 6140), (3460, 5833)]