20123647675

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{633317}}^1$

素因数の和:633399

約数の個数: 24

約数和(自身を含む): 26386561152

約数和(自身を除く): 6262913477

約数列:

[1, 5, 25, 31, 41, 155, 205, 775, 1025, 1271, 6355, 31775, 633317, 3166585, 15832925, 19632827, 25965997, 98164135, 129829985, 490820675, 649149925, 804945907, 4024729535, 20123647675]

約数ペア:

[(1, 20123647675), (5, 4024729535), (25, 804945907), (31, 649149925), (41, 490820675), (155, 129829985), (205, 98164135), (775, 25965997), (1025, 19632827), (1271, 15832925), (6355, 3166585), (31775, 633317)]