71388520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{254959}}^1$

素因数の和:254977

約数の個数: 32

約数和(自身を含む): 183571200

約数和(自身を除く): 112182680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 254959, 509918, 1019836, 1274795, 1784713, 2039672, 2549590, 3569426, 5099180, 7138852, 8923565, 10198360, 14277704, 17847130, 35694260, 71388520]

約数ペア:

[(1, 71388520), (2, 35694260), (4, 17847130), (5, 14277704), (7, 10198360), (8, 8923565), (10, 7138852), (14, 5099180), (20, 3569426), (28, 2549590), (35, 2039672), (40, 1784713), (56, 1274795), (70, 1019836), (140, 509918), (280, 254959)]