64566500

素因数分解:

$2^2\times 5^3\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 141837696

約数和(自身を除く): 77271196

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 263, 491, 500, 526, 982, 1052, 1315, 1964, 2455, 2630, 4910, 5260, 6575, 9820, 12275, 13150, 24550, 26300, 32875, 49100, 61375, 65750, 122750, 129133, 131500, 245500, 258266, 516532, 645665, 1291330, 2582660, 3228325, 6456650, 12913300, 16141625, 32283250, 64566500]

約数ペア:

[(1, 64566500), (2, 32283250), (4, 16141625), (5, 12913300), (10, 6456650), (20, 3228325), (25, 2582660), (50, 1291330), (100, 645665), (125, 516532), (250, 258266), (263, 245500), (491, 131500), (500, 129133), (526, 122750), (982, 65750), (1052, 61375), (1315, 49100), (1964, 32875), (2455, 26300), (2630, 24550), (4910, 13150), (5260, 12275), (6575, 9820)]