27980925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 53329920

約数和(自身を除く): 25348995

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 223, 239, 525, 669, 717, 1115, 1195, 1561, 1673, 3345, 3585, 4683, 5019, 5575, 5975, 7805, 8365, 16725, 17925, 23415, 25095, 39025, 41825, 53297, 117075, 125475, 159891, 266485, 373079, 799455, 1119237, 1332425, 1865395, 3997275, 5596185, 9326975, 27980925]

約数ペア:

[(1, 27980925), (3, 9326975), (5, 5596185), (7, 3997275), (15, 1865395), (21, 1332425), (25, 1119237), (35, 799455), (75, 373079), (105, 266485), (175, 159891), (223, 125475), (239, 117075), (525, 53297), (669, 41825), (717, 39025), (1115, 25095), (1195, 23415), (1561, 17925), (1673, 16725), (3345, 8365), (3585, 7805), (4683, 5975), (5019, 5575)]