87414820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{499}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 194040000

約数和(自身を除く): 106625180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 461, 499, 922, 998, 1844, 1996, 2305, 2495, 4610, 4990, 8759, 9220, 9481, 9980, 17518, 18962, 35036, 37924, 43795, 47405, 87590, 94810, 175180, 189620, 230039, 460078, 920156, 1150195, 2300390, 4370741, 4600780, 8741482, 17482964, 21853705, 43707410, 87414820]

約数ペア:

[(1, 87414820), (2, 43707410), (4, 21853705), (5, 17482964), (10, 8741482), (19, 4600780), (20, 4370741), (38, 2300390), (76, 1150195), (95, 920156), (190, 460078), (380, 230039), (461, 189620), (499, 175180), (922, 94810), (998, 87590), (1844, 47405), (1996, 43795), (2305, 37924), (2495, 35036), (4610, 18962), (4990, 17518), (8759, 9980), (9220, 9481)]