25278680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90281}}^1$

素因数の和:90299

約数の個数: 32

約数和(自身を含む): 65003040

約数和(自身を除く): 39724360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90281, 180562, 361124, 451405, 631967, 722248, 902810, 1263934, 1805620, 2527868, 3159835, 3611240, 5055736, 6319670, 12639340, 25278680]

約数ペア:

[(1, 25278680), (2, 12639340), (4, 6319670), (5, 5055736), (7, 3611240), (8, 3159835), (10, 2527868), (14, 1805620), (20, 1263934), (28, 902810), (35, 722248), (40, 631967), (56, 451405), (70, 361124), (140, 180562), (280, 90281)]