80814620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{577}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 174787200

約数和(自身を除く): 93972580

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 149, 188, 235, 298, 470, 577, 596, 745, 940, 1154, 1490, 2308, 2885, 2980, 5770, 7003, 11540, 14006, 27119, 28012, 35015, 54238, 70030, 85973, 108476, 135595, 140060, 171946, 271190, 343892, 429865, 542380, 859730, 1719460, 4040731, 8081462, 16162924, 20203655, 40407310, 80814620]

約数ペア:

[(1, 80814620), (2, 40407310), (4, 20203655), (5, 16162924), (10, 8081462), (20, 4040731), (47, 1719460), (94, 859730), (149, 542380), (188, 429865), (235, 343892), (298, 271190), (470, 171946), (577, 140060), (596, 135595), (745, 108476), (940, 85973), (1154, 70030), (1490, 54238), (2308, 35015), (2885, 28012), (2980, 27119), (5770, 14006), (7003, 11540)]