31616180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 68819520

約数和(自身を除く): 37203340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 379, 388, 430, 485, 758, 860, 970, 1516, 1895, 1940, 3790, 4171, 7580, 8342, 16297, 16684, 20855, 32594, 36763, 41710, 65188, 73526, 81485, 83420, 147052, 162970, 183815, 325940, 367630, 735260, 1580809, 3161618, 6323236, 7904045, 15808090, 31616180]

約数ペア:

[(1, 31616180), (2, 15808090), (4, 7904045), (5, 6323236), (10, 3161618), (20, 1580809), (43, 735260), (86, 367630), (97, 325940), (172, 183815), (194, 162970), (215, 147052), (379, 83420), (388, 81485), (430, 73526), (485, 65188), (758, 41710), (860, 36763), (970, 32594), (1516, 20855), (1895, 16684), (1940, 16297), (3790, 8342), (4171, 7580)]