20217187125

素因数分解:

$3^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{438313}}^1$

素因数の和:438375

約数の個数: 48

約数和(自身を含む): 37333833264

約数和(自身を除く): 17116646139

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 125, 205, 225, 369, 375, 615, 1025, 1125, 1845, 3075, 5125, 9225, 15375, 46125, 438313, 1314939, 2191565, 3944817, 6574695, 10957825, 17970833, 19724085, 32873475, 53912499, 54789125, 89854165, 98620425, 161737497, 164367375, 269562495, 449270825, 493102125, 808687485, 1347812475, 2246354125, 4043437425, 6739062375, 20217187125]

約数ペア:

[(1, 20217187125), (3, 6739062375), (5, 4043437425), (9, 2246354125), (15, 1347812475), (25, 808687485), (41, 493102125), (45, 449270825), (75, 269562495), (123, 164367375), (125, 161737497), (205, 98620425), (225, 89854165), (369, 54789125), (375, 53912499), (615, 32873475), (1025, 19724085), (1125, 17970833), (1845, 10957825), (3075, 6574695), (5125, 3944817), (9225, 2191565), (15375, 1314939), (46125, 438313)]