20123258120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71868779}}^1$

素因数の和:71868797

約数の個数: 32

約数和(自身を含む): 51745521600

約数和(自身を除く): 31622263480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71868779, 143737558, 287475116, 359343895, 503081453, 574950232, 718687790, 1006162906, 1437375580, 2012325812, 2515407265, 2874751160, 4024651624, 5030814530, 10061629060, 20123258120]

約数ペア:

[(1, 20123258120), (2, 10061629060), (4, 5030814530), (5, 4024651624), (7, 2874751160), (8, 2515407265), (10, 2012325812), (14, 1437375580), (20, 1006162906), (28, 718687790), (35, 574950232), (40, 503081453), (56, 359343895), (70, 287475116), (140, 143737558), (280, 71868779)]