25878475

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 39719680

約数和(自身を除く): 13841205

約数列:

[1, 5, 7, 19, 25, 35, 43, 95, 133, 175, 181, 215, 301, 475, 665, 817, 905, 1075, 1267, 1505, 3325, 3439, 4085, 4525, 5719, 6335, 7525, 7783, 17195, 20425, 24073, 28595, 31675, 38915, 54481, 85975, 120365, 142975, 147877, 194575, 272405, 601825, 739385, 1035139, 1362025, 3696925, 5175695, 25878475]

約数ペア:

[(1, 25878475), (5, 5175695), (7, 3696925), (19, 1362025), (25, 1035139), (35, 739385), (43, 601825), (95, 272405), (133, 194575), (175, 147877), (181, 142975), (215, 120365), (301, 85975), (475, 54481), (665, 38915), (817, 31675), (905, 28595), (1075, 24073), (1267, 20425), (1505, 17195), (3325, 7783), (3439, 7525), (4085, 6335), (4525, 5719)]