140872180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{115469}}^1$

素因数の和:115539

約数の個数: 24

約数和(自身を含む): 300683880

約数和(自身を除く): 159811700

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 115469, 230938, 461876, 577345, 1154690, 2309380, 7043609, 14087218, 28174436, 35218045, 70436090, 140872180]

約数ペア:

[(1, 140872180), (2, 70436090), (4, 35218045), (5, 28174436), (10, 14087218), (20, 7043609), (61, 2309380), (122, 1154690), (244, 577345), (305, 461876), (610, 230938), (1220, 115469)]