20177777020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{170047}}^1$

素因数の和:170422

約数の個数: 48

約数和(自身を含む): 44994700800

約数和(自身を除く): 24816923780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 349, 698, 1396, 1745, 3490, 5933, 6980, 11866, 23732, 29665, 59330, 118660, 170047, 340094, 680188, 850235, 1700470, 2890799, 3400940, 5781598, 11563196, 14453995, 28907990, 57815980, 59346403, 118692806, 237385612, 296732015, 593464030, 1008888851, 1186928060, 2017777702, 4035555404, 5044444255, 10088888510, 20177777020]

約数ペア:

[(1, 20177777020), (2, 10088888510), (4, 5044444255), (5, 4035555404), (10, 2017777702), (17, 1186928060), (20, 1008888851), (34, 593464030), (68, 296732015), (85, 237385612), (170, 118692806), (340, 59346403), (349, 57815980), (698, 28907990), (1396, 14453995), (1745, 11563196), (3490, 5781598), (5933, 3400940), (6980, 2890799), (11866, 1700470), (23732, 850235), (29665, 680188), (59330, 340094), (118660, 170047)]