18874072

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 23427368

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 71, 94, 101, 142, 188, 202, 284, 329, 376, 404, 497, 568, 658, 707, 808, 994, 1316, 1414, 1988, 2632, 2828, 3337, 3976, 4747, 5656, 6674, 7171, 9494, 13348, 14342, 18988, 23359, 26696, 28684, 33229, 37976, 46718, 50197, 57368, 66458, 93436, 100394, 132916, 186872, 200788, 265832, 337037, 401576, 674074, 1348148, 2359259, 2696296, 4718518, 9437036, 18874072]

約数ペア:

[(1, 18874072), (2, 9437036), (4, 4718518), (7, 2696296), (8, 2359259), (14, 1348148), (28, 674074), (47, 401576), (56, 337037), (71, 265832), (94, 200788), (101, 186872), (142, 132916), (188, 100394), (202, 93436), (284, 66458), (329, 57368), (376, 50197), (404, 46718), (497, 37976), (568, 33229), (658, 28684), (707, 26696), (808, 23359), (994, 18988), (1316, 14342), (1414, 13348), (1988, 9494), (2632, 7171), (2828, 6674), (3337, 5656), (3976, 4747)]