81731754

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{197}}^2$

素因数の和:421

約数の個数: 60

約数和(自身を含む): 198233574

約数和(自身を除く): 116501820

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 197, 234, 351, 394, 591, 702, 1053, 1182, 1773, 2106, 2561, 3546, 5122, 5319, 7683, 10638, 15366, 15957, 23049, 31914, 38809, 46098, 69147, 77618, 116427, 138294, 207441, 232854, 349281, 414882, 504517, 698562, 1009034, 1047843, 1513551, 2095686, 3027102, 3143529, 4540653, 6287058, 9081306, 13621959, 27243918, 40865877, 81731754]

約数ペア:

[(1, 81731754), (2, 40865877), (3, 27243918), (6, 13621959), (9, 9081306), (13, 6287058), (18, 4540653), (26, 3143529), (27, 3027102), (39, 2095686), (54, 1513551), (78, 1047843), (81, 1009034), (117, 698562), (162, 504517), (197, 414882), (234, 349281), (351, 232854), (394, 207441), (591, 138294), (702, 116427), (1053, 77618), (1182, 69147), (1773, 46098), (2106, 38809), (2561, 31914), (3546, 23049), (5122, 15957), (5319, 15366), (7683, 10638)]