20512373750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^3\times {\mathrm{12329}}^1$

素因数の和:12384

約数の個数: 80

約数和(自身を含む): 42293774160

約数和(自身を除く): 21781400410

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 625, 1210, 1250, 1331, 1375, 2662, 2750, 3025, 6050, 6655, 6875, 12329, 13310, 13750, 15125, 24658, 30250, 33275, 61645, 66550, 75625, 123290, 135619, 151250, 166375, 271238, 308225, 332750, 616450, 678095, 831875, 1356190, 1491809, 1541125, 1663750, 2983618, 3082250, 3390475, 6780950, 7459045, 7705625, 14918090, 15411250, 16409899, 16952375, 32819798, 33904750, 37295225, 74590450, 82049495, 84761875, 164098990, 169523750, 186476125, 372952250, 410247475, 820494950, 932380625, 1864761250, 2051237375, 4102474750, 10256186875, 20512373750]

約数ペア:

[(1, 20512373750), (2, 10256186875), (5, 4102474750), (10, 2051237375), (11, 1864761250), (22, 932380625), (25, 820494950), (50, 410247475), (55, 372952250), (110, 186476125), (121, 169523750), (125, 164098990), (242, 84761875), (250, 82049495), (275, 74590450), (550, 37295225), (605, 33904750), (625, 32819798), (1210, 16952375), (1250, 16409899), (1331, 15411250), (1375, 14918090), (2662, 7705625), (2750, 7459045), (3025, 6780950), (6050, 3390475), (6655, 3082250), (6875, 2983618), (12329, 1663750), (13310, 1541125), (13750, 1491809), (15125, 1356190), (24658, 831875), (30250, 678095), (33275, 616450), (61645, 332750), (66550, 308225), (75625, 271238), (123290, 166375), (135619, 151250)]