68912500

素因数分解:

$2^2\times 5^5\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 155849400

約数和(自身を除く): 86936900

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 149, 185, 250, 298, 370, 500, 596, 625, 740, 745, 925, 1250, 1490, 1850, 2500, 2980, 3125, 3700, 3725, 4625, 5513, 6250, 7450, 9250, 11026, 12500, 14900, 18500, 18625, 22052, 23125, 27565, 37250, 46250, 55130, 74500, 92500, 93125, 110260, 115625, 137825, 186250, 231250, 275650, 372500, 462500, 465625, 551300, 689125, 931250, 1378250, 1862500, 2756500, 3445625, 6891250, 13782500, 17228125, 34456250, 68912500]

約数ペア:

[(1, 68912500), (2, 34456250), (4, 17228125), (5, 13782500), (10, 6891250), (20, 3445625), (25, 2756500), (37, 1862500), (50, 1378250), (74, 931250), (100, 689125), (125, 551300), (148, 465625), (149, 462500), (185, 372500), (250, 275650), (298, 231250), (370, 186250), (500, 137825), (596, 115625), (625, 110260), (740, 93125), (745, 92500), (925, 74500), (1250, 55130), (1490, 46250), (1850, 37250), (2500, 27565), (2980, 23125), (3125, 22052), (3700, 18625), (3725, 18500), (4625, 14900), (5513, 12500), (6250, 11026), (7450, 9250)]