40420520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{599}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 104544000

約数和(自身を除く): 64123480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 241, 280, 482, 599, 964, 1198, 1205, 1687, 1928, 2396, 2410, 2995, 3374, 4193, 4792, 4820, 5990, 6748, 8386, 8435, 9640, 11980, 13496, 16772, 16870, 20965, 23960, 33544, 33740, 41930, 67480, 83860, 144359, 167720, 288718, 577436, 721795, 1010513, 1154872, 1443590, 2021026, 2887180, 4042052, 5052565, 5774360, 8084104, 10105130, 20210260, 40420520]

約数ペア:

[(1, 40420520), (2, 20210260), (4, 10105130), (5, 8084104), (7, 5774360), (8, 5052565), (10, 4042052), (14, 2887180), (20, 2021026), (28, 1443590), (35, 1154872), (40, 1010513), (56, 721795), (70, 577436), (140, 288718), (241, 167720), (280, 144359), (482, 83860), (599, 67480), (964, 41930), (1198, 33740), (1205, 33544), (1687, 23960), (1928, 20965), (2396, 16870), (2410, 16772), (2995, 13496), (3374, 11980), (4193, 9640), (4792, 8435), (4820, 8386), (5990, 6748)]