31254520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 77293440

約数和(自身を除く): 46038920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 251, 283, 440, 502, 566, 1004, 1132, 1255, 1415, 2008, 2264, 2510, 2761, 2830, 3113, 5020, 5522, 5660, 6226, 10040, 11044, 11320, 12452, 13805, 15565, 22088, 24904, 27610, 31130, 55220, 62260, 71033, 110440, 124520, 142066, 284132, 355165, 568264, 710330, 781363, 1420660, 1562726, 2841320, 3125452, 3906815, 6250904, 7813630, 15627260, 31254520]

約数ペア:

[(1, 31254520), (2, 15627260), (4, 7813630), (5, 6250904), (8, 3906815), (10, 3125452), (11, 2841320), (20, 1562726), (22, 1420660), (40, 781363), (44, 710330), (55, 568264), (88, 355165), (110, 284132), (220, 142066), (251, 124520), (283, 110440), (440, 71033), (502, 62260), (566, 55220), (1004, 31130), (1132, 27610), (1255, 24904), (1415, 22088), (2008, 15565), (2264, 13805), (2510, 12452), (2761, 11320), (2830, 11044), (3113, 10040), (5020, 6226), (5522, 5660)]