31180520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5861}}^1$

素因数の和:5898

約数の個数: 64

約数和(自身を含む): 84412800

約数和(自身を除く): 53232280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 5861, 11722, 23444, 29305, 41027, 46888, 58610, 82054, 111359, 117220, 164108, 205135, 222718, 234440, 328216, 410270, 445436, 556795, 779513, 820540, 890872, 1113590, 1559026, 1641080, 2227180, 3118052, 3897565, 4454360, 6236104, 7795130, 15590260, 31180520]

約数ペア:

[(1, 31180520), (2, 15590260), (4, 7795130), (5, 6236104), (7, 4454360), (8, 3897565), (10, 3118052), (14, 2227180), (19, 1641080), (20, 1559026), (28, 1113590), (35, 890872), (38, 820540), (40, 779513), (56, 556795), (70, 445436), (76, 410270), (95, 328216), (133, 234440), (140, 222718), (152, 205135), (190, 164108), (266, 117220), (280, 111359), (380, 82054), (532, 58610), (665, 46888), (760, 41027), (1064, 29305), (1330, 23444), (2660, 11722), (5320, 5861)]