19968210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1747}}^1$

素因数の和:1887

約数の個数: 48

約数和(自身を含む): 52356096

約数和(自身を除く): 32387886

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1747, 1905, 2286, 3494, 3810, 5241, 5715, 8735, 10482, 11430, 15723, 17470, 26205, 31446, 52410, 78615, 157230, 221869, 443738, 665607, 1109345, 1331214, 1996821, 2218690, 3328035, 3993642, 6656070, 9984105, 19968210]

約数ペア:

[(1, 19968210), (2, 9984105), (3, 6656070), (5, 3993642), (6, 3328035), (9, 2218690), (10, 1996821), (15, 1331214), (18, 1109345), (30, 665607), (45, 443738), (90, 221869), (127, 157230), (254, 78615), (381, 52410), (635, 31446), (762, 26205), (1143, 17470), (1270, 15723), (1747, 11430), (1905, 10482), (2286, 8735), (3494, 5715), (3810, 5241)]