1320687620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{254959}}^1$

素因数の和:255012

約数の個数: 48

約数和(自身を含む): 3255329280

約数和(自身を除く): 1934641660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 254959, 509918, 1019836, 1274795, 1784713, 2549590, 3569426, 5099180, 7138852, 8923565, 9433483, 17847130, 18866966, 35694260, 37733932, 47167415, 66034381, 94334830, 132068762, 188669660, 264137524, 330171905, 660343810, 1320687620]

約数ペア:

[(1, 1320687620), (2, 660343810), (4, 330171905), (5, 264137524), (7, 188669660), (10, 132068762), (14, 94334830), (20, 66034381), (28, 47167415), (35, 37733932), (37, 35694260), (70, 18866966), (74, 17847130), (140, 9433483), (148, 8923565), (185, 7138852), (259, 5099180), (370, 3569426), (518, 2549590), (740, 1784713), (1036, 1274795), (1295, 1019836), (2590, 509918), (5180, 254959)]