20747298180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49398329}}^1$

素因数の和:49398348

約数の個数: 48

約数和(自身を含む): 66391355520

約数和(自身を除く): 45644057340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49398329, 98796658, 148194987, 197593316, 246991645, 296389974, 345788303, 493983290, 592779948, 691576606, 740974935, 987966580, 1037364909, 1383153212, 1481949870, 1728941515, 2074729818, 2963899740, 3457883030, 4149459636, 5186824545, 6915766060, 10373649090, 20747298180]

約数ペア:

[(1, 20747298180), (2, 10373649090), (3, 6915766060), (4, 5186824545), (5, 4149459636), (6, 3457883030), (7, 2963899740), (10, 2074729818), (12, 1728941515), (14, 1481949870), (15, 1383153212), (20, 1037364909), (21, 987966580), (28, 740974935), (30, 691576606), (35, 592779948), (42, 493983290), (60, 345788303), (70, 296389974), (84, 246991645), (105, 197593316), (140, 148194987), (210, 98796658), (420, 49398329)]