20403733420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{236209}}^1$

素因数の和:236842

約数の個数: 48

約数和(自身を含む): 49048534080

約数和(自身を除く): 28644800660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 617, 1234, 2468, 3085, 4319, 6170, 8638, 12340, 17276, 21595, 43190, 86380, 236209, 472418, 944836, 1181045, 1653463, 2362090, 3306926, 4724180, 6613852, 8267315, 16534630, 33069260, 145740953, 291481906, 582963812, 728704765, 1020186671, 1457409530, 2040373342, 2914819060, 4080746684, 5100933355, 10201866710, 20403733420]

約数ペア:

[(1, 20403733420), (2, 10201866710), (4, 5100933355), (5, 4080746684), (7, 2914819060), (10, 2040373342), (14, 1457409530), (20, 1020186671), (28, 728704765), (35, 582963812), (70, 291481906), (140, 145740953), (617, 33069260), (1234, 16534630), (2468, 8267315), (3085, 6613852), (4319, 4724180), (6170, 3306926), (8638, 2362090), (12340, 1653463), (17276, 1181045), (21595, 944836), (43190, 472418), (86380, 236209)]