20153764120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71977729}}^1$

素因数の和:71977747

約数の個数: 32

約数和(自身を含む): 51823965600

約数和(自身を除く): 31670201480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71977729, 143955458, 287910916, 359888645, 503844103, 575821832, 719777290, 1007688206, 1439554580, 2015376412, 2519220515, 2879109160, 4030752824, 5038441030, 10076882060, 20153764120]

約数ペア:

[(1, 20153764120), (2, 10076882060), (4, 5038441030), (5, 4030752824), (7, 2879109160), (8, 2519220515), (10, 2015376412), (14, 1439554580), (20, 1007688206), (28, 719777290), (35, 575821832), (40, 503844103), (56, 359888645), (70, 287910916), (140, 143955458), (280, 71977729)]