51102020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1628

約数の個数: 48

約数和(自身を含む): 114307200

約数和(自身を除く): 63205180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1511, 1691, 1780, 3022, 3382, 6044, 6764, 7555, 8455, 15110, 16910, 28709, 30220, 33820, 57418, 114836, 134479, 143545, 268958, 287090, 537916, 574180, 672395, 1344790, 2555101, 2689580, 5110202, 10220404, 12775505, 25551010, 51102020]

約数ペア:

[(1, 51102020), (2, 25551010), (4, 12775505), (5, 10220404), (10, 5110202), (19, 2689580), (20, 2555101), (38, 1344790), (76, 672395), (89, 574180), (95, 537916), (178, 287090), (190, 268958), (356, 143545), (380, 134479), (445, 114836), (890, 57418), (1511, 33820), (1691, 30220), (1780, 28709), (3022, 16910), (3382, 15110), (6044, 8455), (6764, 7555)]