25870780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5237}}^1$

素因数の和:5278

約数の個数: 48

約数和(自身を含む): 61598880

約数和(自身を除く): 35728100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 5237, 10474, 20948, 26185, 52370, 68081, 99503, 104740, 136162, 199006, 272324, 340405, 398012, 497515, 680810, 995030, 1293539, 1361620, 1990060, 2587078, 5174156, 6467695, 12935390, 25870780]

約数ペア:

[(1, 25870780), (2, 12935390), (4, 6467695), (5, 5174156), (10, 2587078), (13, 1990060), (19, 1361620), (20, 1293539), (26, 995030), (38, 680810), (52, 497515), (65, 398012), (76, 340405), (95, 272324), (130, 199006), (190, 136162), (247, 104740), (260, 99503), (380, 68081), (494, 52370), (988, 26185), (1235, 20948), (2470, 10474), (4940, 5237)]