18121040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32359}}^1$

素因数の和:32379

約数の個数: 40

約数和(自身を含む): 48151680

約数和(自身を除く): 30030640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32359, 64718, 129436, 161795, 226513, 258872, 323590, 453026, 517744, 647180, 906052, 1132565, 1294360, 1812104, 2265130, 2588720, 3624208, 4530260, 9060520, 18121040]

約数ペア:

[(1, 18121040), (2, 9060520), (4, 4530260), (5, 3624208), (7, 2588720), (8, 2265130), (10, 1812104), (14, 1294360), (16, 1132565), (20, 906052), (28, 647180), (35, 517744), (40, 453026), (56, 323590), (70, 258872), (80, 226513), (112, 161795), (140, 129436), (280, 64718), (560, 32359)]