20765150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 44759040

約数和(自身を除く): 23993890

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 158, 175, 350, 395, 553, 751, 790, 1106, 1502, 1975, 2765, 3755, 3950, 5257, 5530, 7510, 10514, 13825, 18775, 26285, 27650, 37550, 52570, 59329, 118658, 131425, 262850, 296645, 415303, 593290, 830606, 1483225, 2076515, 2966450, 4153030, 10382575, 20765150]

約数ペア:

[(1, 20765150), (2, 10382575), (5, 4153030), (7, 2966450), (10, 2076515), (14, 1483225), (25, 830606), (35, 593290), (50, 415303), (70, 296645), (79, 262850), (158, 131425), (175, 118658), (350, 59329), (395, 52570), (553, 37550), (751, 27650), (790, 26285), (1106, 18775), (1502, 13825), (1975, 10514), (2765, 7510), (3755, 5530), (3950, 5257)]