407540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 1016064

約数和(自身を除く): 608524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 71, 82, 140, 142, 164, 205, 284, 287, 355, 410, 497, 574, 710, 820, 994, 1148, 1420, 1435, 1988, 2485, 2870, 2911, 4970, 5740, 5822, 9940, 11644, 14555, 20377, 29110, 40754, 58220, 81508, 101885, 203770, 407540]

約数ペア:

[(1, 407540), (2, 203770), (4, 101885), (5, 81508), (7, 58220), (10, 40754), (14, 29110), (20, 20377), (28, 14555), (35, 11644), (41, 9940), (70, 5822), (71, 5740), (82, 4970), (140, 2911), (142, 2870), (164, 2485), (205, 1988), (284, 1435), (287, 1420), (355, 1148), (410, 994), (497, 820), (574, 710)]