20880147180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4901443}}^1$

素因数の和:4901526

約数の個数: 48

約数和(自身を含む): 59287866624

約数和(自身を除く): 38407719444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4901443, 9802886, 14704329, 19605772, 24507215, 29408658, 49014430, 58817316, 73521645, 98028860, 147043290, 294086580, 348002453, 696004906, 1044007359, 1392009812, 1740012265, 2088014718, 3480024530, 4176029436, 5220036795, 6960049060, 10440073590, 20880147180]

約数ペア:

[(1, 20880147180), (2, 10440073590), (3, 6960049060), (4, 5220036795), (5, 4176029436), (6, 3480024530), (10, 2088014718), (12, 1740012265), (15, 1392009812), (20, 1044007359), (30, 696004906), (60, 348002453), (71, 294086580), (142, 147043290), (213, 98028860), (284, 73521645), (355, 58817316), (426, 49014430), (710, 29408658), (852, 24507215), (1065, 19605772), (1420, 14704329), (2130, 9802886), (4260, 4901443)]