31190780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 69888000

約数和(自身を除く): 38697220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1039, 1501, 1580, 2078, 3002, 4156, 5195, 6004, 7505, 10390, 15010, 19741, 20780, 30020, 39482, 78964, 82081, 98705, 164162, 197410, 328324, 394820, 410405, 820810, 1559539, 1641620, 3119078, 6238156, 7797695, 15595390, 31190780]

約数ペア:

[(1, 31190780), (2, 15595390), (4, 7797695), (5, 6238156), (10, 3119078), (19, 1641620), (20, 1559539), (38, 820810), (76, 410405), (79, 394820), (95, 328324), (158, 197410), (190, 164162), (316, 98705), (380, 82081), (395, 78964), (790, 39482), (1039, 30020), (1501, 20780), (1580, 19741), (2078, 15010), (3002, 10390), (4156, 7505), (5195, 6004)]