20583750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:535

約数の個数: 80

約数和(自身を含む): 56232000

約数和(自身を除く): 35648250

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 125, 150, 165, 250, 275, 330, 375, 499, 550, 625, 750, 825, 998, 1250, 1375, 1497, 1650, 1875, 2495, 2750, 2994, 3750, 4125, 4990, 5489, 6875, 7485, 8250, 10978, 12475, 13750, 14970, 16467, 20625, 24950, 27445, 32934, 37425, 41250, 54890, 62375, 74850, 82335, 124750, 137225, 164670, 187125, 274450, 311875, 374250, 411675, 623750, 686125, 823350, 935625, 1372250, 1871250, 2058375, 3430625, 4116750, 6861250, 10291875, 20583750]

約数ペア:

[(1, 20583750), (2, 10291875), (3, 6861250), (5, 4116750), (6, 3430625), (10, 2058375), (11, 1871250), (15, 1372250), (22, 935625), (25, 823350), (30, 686125), (33, 623750), (50, 411675), (55, 374250), (66, 311875), (75, 274450), (110, 187125), (125, 164670), (150, 137225), (165, 124750), (250, 82335), (275, 74850), (330, 62375), (375, 54890), (499, 41250), (550, 37425), (625, 32934), (750, 27445), (825, 24950), (998, 20625), (1250, 16467), (1375, 14970), (1497, 13750), (1650, 12475), (1875, 10978), (2495, 8250), (2750, 7485), (2994, 6875), (3750, 5489), (4125, 4990)]