40406000

素因数分解:

$2^4\times 5^3\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 80

約数和(自身を含む): 99234720

約数和(自身を除く): 58828720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 125, 178, 200, 227, 250, 356, 400, 445, 454, 500, 712, 890, 908, 1000, 1135, 1424, 1780, 1816, 2000, 2225, 2270, 3560, 3632, 4450, 4540, 5675, 7120, 8900, 9080, 11125, 11350, 17800, 18160, 20203, 22250, 22700, 28375, 35600, 40406, 44500, 45400, 56750, 80812, 89000, 90800, 101015, 113500, 161624, 178000, 202030, 227000, 323248, 404060, 454000, 505075, 808120, 1010150, 1616240, 2020300, 2525375, 4040600, 5050750, 8081200, 10101500, 20203000, 40406000]

約数ペア:

[(1, 40406000), (2, 20203000), (4, 10101500), (5, 8081200), (8, 5050750), (10, 4040600), (16, 2525375), (20, 2020300), (25, 1616240), (40, 1010150), (50, 808120), (80, 505075), (89, 454000), (100, 404060), (125, 323248), (178, 227000), (200, 202030), (227, 178000), (250, 161624), (356, 113500), (400, 101015), (445, 90800), (454, 89000), (500, 80812), (712, 56750), (890, 45400), (908, 44500), (1000, 40406), (1135, 35600), (1424, 28375), (1780, 22700), (1816, 22250), (2000, 20203), (2225, 18160), (2270, 17800), (3560, 11350), (3632, 11125), (4450, 9080), (4540, 8900), (5675, 7120)]