20763500

素因数分解:

$2^2\times 5^3\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 45837792

約数和(自身を除く): 25074292

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 131, 250, 262, 317, 500, 524, 634, 655, 1268, 1310, 1585, 2620, 3170, 3275, 6340, 6550, 7925, 13100, 15850, 16375, 31700, 32750, 39625, 41527, 65500, 79250, 83054, 158500, 166108, 207635, 415270, 830540, 1038175, 2076350, 4152700, 5190875, 10381750, 20763500]

約数ペア:

[(1, 20763500), (2, 10381750), (4, 5190875), (5, 4152700), (10, 2076350), (20, 1038175), (25, 830540), (50, 415270), (100, 207635), (125, 166108), (131, 158500), (250, 83054), (262, 79250), (317, 65500), (500, 41527), (524, 39625), (634, 32750), (655, 31700), (1268, 16375), (1310, 15850), (1585, 13100), (2620, 7925), (3170, 6550), (3275, 6340)]