40688396

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 83768832

約数和(自身を除く): 43080436

約数列:

[1, 2, 4, 7, 14, 28, 71, 97, 142, 194, 211, 284, 388, 422, 497, 679, 844, 994, 1358, 1477, 1988, 2716, 2954, 5908, 6887, 13774, 14981, 20467, 27548, 29962, 40934, 48209, 59924, 81868, 96418, 104867, 143269, 192836, 209734, 286538, 419468, 573076, 1453157, 2906314, 5812628, 10172099, 20344198, 40688396]

約数ペア:

[(1, 40688396), (2, 20344198), (4, 10172099), (7, 5812628), (14, 2906314), (28, 1453157), (71, 573076), (97, 419468), (142, 286538), (194, 209734), (211, 192836), (284, 143269), (388, 104867), (422, 96418), (497, 81868), (679, 59924), (844, 48209), (994, 40934), (1358, 29962), (1477, 27548), (1988, 20467), (2716, 14981), (2954, 13774), (5908, 6887)]