25438420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1667}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 61649280

約数和(自身を除く): 36210860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1667, 2180, 3052, 3334, 3815, 6668, 7630, 8335, 11669, 15260, 16670, 23338, 33340, 46676, 58345, 116690, 181703, 233380, 363406, 726812, 908515, 1271921, 1817030, 2543842, 3634060, 5087684, 6359605, 12719210, 25438420]

約数ペア:

[(1, 25438420), (2, 12719210), (4, 6359605), (5, 5087684), (7, 3634060), (10, 2543842), (14, 1817030), (20, 1271921), (28, 908515), (35, 726812), (70, 363406), (109, 233380), (140, 181703), (218, 116690), (436, 58345), (545, 46676), (763, 33340), (1090, 23338), (1526, 16670), (1667, 15260), (2180, 11669), (3052, 8335), (3334, 7630), (3815, 6668)]