18205250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 39716352

約数和(自身を除く): 21511102

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 101, 103, 125, 175, 202, 206, 250, 350, 505, 515, 707, 721, 875, 1010, 1030, 1414, 1442, 1750, 2525, 2575, 3535, 3605, 5050, 5150, 7070, 7210, 10403, 12625, 12875, 17675, 18025, 20806, 25250, 25750, 35350, 36050, 52015, 72821, 88375, 90125, 104030, 145642, 176750, 180250, 260075, 364105, 520150, 728210, 1300375, 1820525, 2600750, 3641050, 9102625, 18205250]

約数ペア:

[(1, 18205250), (2, 9102625), (5, 3641050), (7, 2600750), (10, 1820525), (14, 1300375), (25, 728210), (35, 520150), (50, 364105), (70, 260075), (101, 180250), (103, 176750), (125, 145642), (175, 104030), (202, 90125), (206, 88375), (250, 72821), (350, 52015), (505, 36050), (515, 35350), (707, 25750), (721, 25250), (875, 20806), (1010, 18025), (1030, 17675), (1414, 12875), (1442, 12625), (1750, 10403), (2525, 7210), (2575, 7070), (3535, 5150), (3605, 5050)]