28608020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1609}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 69242880

約数和(自身を除く): 40634860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1609, 1778, 2540, 3218, 3556, 4445, 6436, 8045, 8890, 11263, 16090, 17780, 22526, 32180, 45052, 56315, 112630, 204343, 225260, 408686, 817372, 1021715, 1430401, 2043430, 2860802, 4086860, 5721604, 7152005, 14304010, 28608020]

約数ペア:

[(1, 28608020), (2, 14304010), (4, 7152005), (5, 5721604), (7, 4086860), (10, 2860802), (14, 2043430), (20, 1430401), (28, 1021715), (35, 817372), (70, 408686), (127, 225260), (140, 204343), (254, 112630), (508, 56315), (635, 45052), (889, 32180), (1270, 22526), (1609, 17780), (1778, 16090), (2540, 11263), (3218, 8890), (3556, 8045), (4445, 6436)]