81554040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{25171}}^1$

素因数の和:25194

約数の個数: 80

約数和(自身を含む): 274123080

約数和(自身を除く): 192569040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 25171, 50342, 75513, 100684, 125855, 151026, 201368, 226539, 251710, 302052, 377565, 453078, 503420, 604104, 679617, 755130, 906156, 1006840, 1132695, 1359234, 1510260, 1812312, 2038851, 2265390, 2718468, 3020520, 3398085, 4077702, 4530780, 5436936, 6796170, 8155404, 9061560, 10194255, 13592340, 16310808, 20388510, 27184680, 40777020, 81554040]

約数ペア:

[(1, 81554040), (2, 40777020), (3, 27184680), (4, 20388510), (5, 16310808), (6, 13592340), (8, 10194255), (9, 9061560), (10, 8155404), (12, 6796170), (15, 5436936), (18, 4530780), (20, 4077702), (24, 3398085), (27, 3020520), (30, 2718468), (36, 2265390), (40, 2038851), (45, 1812312), (54, 1510260), (60, 1359234), (72, 1132695), (81, 1006840), (90, 906156), (108, 755130), (120, 679617), (135, 604104), (162, 503420), (180, 453078), (216, 377565), (270, 302052), (324, 251710), (360, 226539), (405, 201368), (540, 151026), (648, 125855), (810, 100684), (1080, 75513), (1620, 50342), (3240, 25171)]