29800720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8663}}^1$

素因数の和:8719

約数の個数: 40

約数和(自身を含む): 70906176

約数和(自身を除く): 41105456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8663, 17326, 34652, 43315, 69304, 86630, 138608, 173260, 346520, 372509, 693040, 745018, 1490036, 1862545, 2980072, 3725090, 5960144, 7450180, 14900360, 29800720]

約数ペア:

[(1, 29800720), (2, 14900360), (4, 7450180), (5, 5960144), (8, 3725090), (10, 2980072), (16, 1862545), (20, 1490036), (40, 745018), (43, 693040), (80, 372509), (86, 346520), (172, 173260), (215, 138608), (344, 86630), (430, 69304), (688, 43315), (860, 34652), (1720, 17326), (3440, 8663)]