45149980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 97020000

約数和(自身を除く): 51870020

約数列:

[1, 2, 4, 5, 10, 20, 109, 139, 149, 218, 278, 298, 436, 545, 556, 596, 695, 745, 1090, 1390, 1490, 2180, 2780, 2980, 15151, 16241, 20711, 30302, 32482, 41422, 60604, 64964, 75755, 81205, 82844, 103555, 151510, 162410, 207110, 303020, 324820, 414220, 2257499, 4514998, 9029996, 11287495, 22574990, 45149980]

約数ペア:

[(1, 45149980), (2, 22574990), (4, 11287495), (5, 9029996), (10, 4514998), (20, 2257499), (109, 414220), (139, 324820), (149, 303020), (218, 207110), (278, 162410), (298, 151510), (436, 103555), (545, 82844), (556, 81205), (596, 75755), (695, 64964), (745, 60604), (1090, 41422), (1390, 32482), (1490, 30302), (2180, 20711), (2780, 16241), (2980, 15151)]