31138940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2293}}^1$

素因数の和:2406

約数の個数: 48

約数和(自身を含む): 75536832

約数和(自身を除く): 44397892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2293, 2716, 3395, 4586, 6790, 9172, 11465, 13580, 16051, 22930, 32102, 45860, 64204, 80255, 160510, 222421, 321020, 444842, 889684, 1112105, 1556947, 2224210, 3113894, 4448420, 6227788, 7784735, 15569470, 31138940]

約数ペア:

[(1, 31138940), (2, 15569470), (4, 7784735), (5, 6227788), (7, 4448420), (10, 3113894), (14, 2224210), (20, 1556947), (28, 1112105), (35, 889684), (70, 444842), (97, 321020), (140, 222421), (194, 160510), (388, 80255), (485, 64204), (679, 45860), (970, 32102), (1358, 22930), (1940, 16051), (2293, 13580), (2716, 11465), (3395, 9172), (4586, 6790)]