20676120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4007}}^1$

素因数の和:4064

約数の個数: 64

約数和(自身を含む): 63486720

約数和(自身を除く): 42810600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4007, 5160, 8014, 12021, 16028, 20035, 24042, 32056, 40070, 48084, 60105, 80140, 96168, 120210, 160280, 172301, 240420, 344602, 480840, 516903, 689204, 861505, 1033806, 1378408, 1723010, 2067612, 2584515, 3446020, 4135224, 5169030, 6892040, 10338060, 20676120]

約数ペア:

[(1, 20676120), (2, 10338060), (3, 6892040), (4, 5169030), (5, 4135224), (6, 3446020), (8, 2584515), (10, 2067612), (12, 1723010), (15, 1378408), (20, 1033806), (24, 861505), (30, 689204), (40, 516903), (43, 480840), (60, 344602), (86, 240420), (120, 172301), (129, 160280), (172, 120210), (215, 96168), (258, 80140), (344, 60105), (430, 48084), (516, 40070), (645, 32056), (860, 24042), (1032, 20035), (1290, 16028), (1720, 12021), (2580, 8014), (4007, 5160)]