87620120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{312929}}^1$

素因数の和:312947

約数の個数: 32

約数和(自身を含む): 225309600

約数和(自身を除く): 137689480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 312929, 625858, 1251716, 1564645, 2190503, 2503432, 3129290, 4381006, 6258580, 8762012, 10952515, 12517160, 17524024, 21905030, 43810060, 87620120]

約数ペア:

[(1, 87620120), (2, 43810060), (4, 21905030), (5, 17524024), (7, 12517160), (8, 10952515), (10, 8762012), (14, 6258580), (20, 4381006), (28, 3129290), (35, 2503432), (40, 2190503), (56, 1564645), (70, 1251716), (140, 625858), (280, 312929)]