17718680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{63281}}^1$

素因数の和:63299

約数の個数: 32

約数和(自身を含む): 45563040

約数和(自身を除く): 27844360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 63281, 126562, 253124, 316405, 442967, 506248, 632810, 885934, 1265620, 1771868, 2214835, 2531240, 3543736, 4429670, 8859340, 17718680]

約数ペア:

[(1, 17718680), (2, 8859340), (4, 4429670), (5, 3543736), (7, 2531240), (8, 2214835), (10, 1771868), (14, 1265620), (20, 885934), (28, 632810), (35, 506248), (40, 442967), (56, 316405), (70, 253124), (140, 126562), (280, 63281)]