2097340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 5128704

約数和(自身を除く): 3031364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 211, 284, 355, 422, 497, 710, 844, 994, 1055, 1420, 1477, 1988, 2110, 2485, 2954, 4220, 4970, 5908, 7385, 9940, 14770, 14981, 29540, 29962, 59924, 74905, 104867, 149810, 209734, 299620, 419468, 524335, 1048670, 2097340]

約数ペア:

[(1, 2097340), (2, 1048670), (4, 524335), (5, 419468), (7, 299620), (10, 209734), (14, 149810), (20, 104867), (28, 74905), (35, 59924), (70, 29962), (71, 29540), (140, 14981), (142, 14770), (211, 9940), (284, 7385), (355, 5908), (422, 4970), (497, 4220), (710, 2954), (844, 2485), (994, 2110), (1055, 1988), (1420, 1477)]