905420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2663}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 2013984

約数和(自身を除く): 1108564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2663, 5326, 10652, 13315, 26630, 45271, 53260, 90542, 181084, 226355, 452710, 905420]

約数ペア:

[(1, 905420), (2, 452710), (4, 226355), (5, 181084), (10, 90542), (17, 53260), (20, 45271), (34, 26630), (68, 13315), (85, 10652), (170, 5326), (340, 2663)]