13078940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{907}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 31729152

約数和(自身を除く): 18650212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 907, 1030, 1442, 1814, 2060, 2884, 3605, 3628, 4535, 6349, 7210, 9070, 12698, 14420, 18140, 25396, 31745, 63490, 93421, 126980, 186842, 373684, 467105, 653947, 934210, 1307894, 1868420, 2615788, 3269735, 6539470, 13078940]

約数ペア:

[(1, 13078940), (2, 6539470), (4, 3269735), (5, 2615788), (7, 1868420), (10, 1307894), (14, 934210), (20, 653947), (28, 467105), (35, 373684), (70, 186842), (103, 126980), (140, 93421), (206, 63490), (412, 31745), (515, 25396), (721, 18140), (907, 14420), (1030, 12698), (1442, 9070), (1814, 7210), (2060, 6349), (2884, 4535), (3605, 3628)]