21098080

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4547}}^1$

素因数の和:4591

約数の個数: 48

約数和(自身を含む): 51574320

約数和(自身を除く): 30476240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4547, 4640, 9094, 18188, 22735, 36376, 45470, 72752, 90940, 131863, 145504, 181880, 263726, 363760, 527452, 659315, 727520, 1054904, 1318630, 2109808, 2637260, 4219616, 5274520, 10549040, 21098080]

約数ペア:

[(1, 21098080), (2, 10549040), (4, 5274520), (5, 4219616), (8, 2637260), (10, 2109808), (16, 1318630), (20, 1054904), (29, 727520), (32, 659315), (40, 527452), (58, 363760), (80, 263726), (116, 181880), (145, 145504), (160, 131863), (232, 90940), (290, 72752), (464, 45470), (580, 36376), (928, 22735), (1160, 18188), (2320, 9094), (4547, 4640)]