281505100

素因数分解:

$2^2\times 5^2\times {\mathrm{1321}}^1\times {\mathrm{2131}}^1$

素因数の和:3466

約数の個数: 36

約数和(自身を含む): 611615368

約数和(自身を除く): 330110268

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1321, 2131, 2642, 4262, 5284, 6605, 8524, 10655, 13210, 21310, 26420, 33025, 42620, 53275, 66050, 106550, 132100, 213100, 2815051, 5630102, 11260204, 14075255, 28150510, 56301020, 70376275, 140752550, 281505100]

約数ペア:

[(1, 281505100), (2, 140752550), (4, 70376275), (5, 56301020), (10, 28150510), (20, 14075255), (25, 11260204), (50, 5630102), (100, 2815051), (1321, 213100), (2131, 132100), (2642, 106550), (4262, 66050), (5284, 53275), (6605, 42620), (8524, 33025), (10655, 26420), (13210, 21310)]