20100500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{5743}}^1$

素因数の和:5769

約数の個数: 48

約数和(自身を含む): 50179584

約数和(自身を除く): 30079084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 5743, 11486, 22972, 28715, 40201, 57430, 80402, 114860, 143575, 160804, 201005, 287150, 402010, 574300, 717875, 804020, 1005025, 1435750, 2010050, 2871500, 4020100, 5025125, 10050250, 20100500]

約数ペア:

[(1, 20100500), (2, 10050250), (4, 5025125), (5, 4020100), (7, 2871500), (10, 2010050), (14, 1435750), (20, 1005025), (25, 804020), (28, 717875), (35, 574300), (50, 402010), (70, 287150), (100, 201005), (125, 160804), (140, 143575), (175, 114860), (250, 80402), (350, 57430), (500, 40201), (700, 28715), (875, 22972), (1750, 11486), (3500, 5743)]