19634740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 43218000

約数和(自身を除く): 23583260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 349, 388, 485, 580, 698, 970, 1396, 1745, 1940, 2813, 3490, 5626, 6980, 10121, 11252, 14065, 20242, 28130, 33853, 40484, 50605, 56260, 67706, 101210, 135412, 169265, 202420, 338530, 677060, 981737, 1963474, 3926948, 4908685, 9817370, 19634740]

約数ペア:

[(1, 19634740), (2, 9817370), (4, 4908685), (5, 3926948), (10, 1963474), (20, 981737), (29, 677060), (58, 338530), (97, 202420), (116, 169265), (145, 135412), (194, 101210), (290, 67706), (349, 56260), (388, 50605), (485, 40484), (580, 33853), (698, 28130), (970, 20242), (1396, 14065), (1745, 11252), (1940, 10121), (2813, 6980), (3490, 5626)]