20329860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4289}}^1$

素因数の和:4380

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 37327740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4289, 4740, 8578, 12867, 17156, 21445, 25734, 42890, 51468, 64335, 85780, 128670, 257340, 338831, 677662, 1016493, 1355324, 1694155, 2032986, 3388310, 4065972, 5082465, 6776620, 10164930, 20329860]

約数ペア:

[(1, 20329860), (2, 10164930), (3, 6776620), (4, 5082465), (5, 4065972), (6, 3388310), (10, 2032986), (12, 1694155), (15, 1355324), (20, 1016493), (30, 677662), (60, 338831), (79, 257340), (158, 128670), (237, 85780), (316, 64335), (395, 51468), (474, 42890), (790, 25734), (948, 21445), (1185, 17156), (1580, 12867), (2370, 8578), (4289, 4740)]