290039260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{29179}}^1$

素因数の和:29266

約数の個数: 48

約数和(自身を含む): 705922560

約数和(自身を除く): 415883300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 29179, 58358, 116716, 145895, 204253, 291790, 408506, 583580, 817012, 1021265, 2042530, 2071709, 4085060, 4143418, 8286836, 10358545, 14501963, 20717090, 29003926, 41434180, 58007852, 72509815, 145019630, 290039260]

約数ペア:

[(1, 290039260), (2, 145019630), (4, 72509815), (5, 58007852), (7, 41434180), (10, 29003926), (14, 20717090), (20, 14501963), (28, 10358545), (35, 8286836), (70, 4143418), (71, 4085060), (140, 2071709), (142, 2042530), (284, 1021265), (355, 817012), (497, 583580), (710, 408506), (994, 291790), (1420, 204253), (1988, 145895), (2485, 116716), (4970, 58358), (9940, 29179)]