65722840

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{2663}}^1$

素因数の和:3291

約数の個数: 32

約数和(自身を含む): 148171680

約数和(自身を除く): 82448840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 2663, 3085, 4936, 5326, 6170, 10652, 12340, 13315, 21304, 24680, 26630, 53260, 106520, 1643071, 3286142, 6572284, 8215355, 13144568, 16430710, 32861420, 65722840]

約数ペア:

[(1, 65722840), (2, 32861420), (4, 16430710), (5, 13144568), (8, 8215355), (10, 6572284), (20, 3286142), (40, 1643071), (617, 106520), (1234, 53260), (2468, 26630), (2663, 24680), (3085, 21304), (4936, 13315), (5326, 12340), (6170, 10652)]