81491364

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1$

素因数の和:977

約数の個数: 72

約数和(自身を含む): 214486272

約数和(自身を除く): 132994908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 61, 86, 122, 129, 172, 183, 244, 258, 366, 387, 516, 549, 732, 774, 863, 1098, 1548, 1726, 2196, 2589, 2623, 3452, 5178, 5246, 7767, 7869, 10356, 10492, 15534, 15738, 23607, 31068, 31476, 37109, 47214, 52643, 74218, 94428, 105286, 111327, 148436, 157929, 210572, 222654, 315858, 333981, 445308, 473787, 631716, 667962, 947574, 1335924, 1895148, 2263649, 4527298, 6790947, 9054596, 13581894, 20372841, 27163788, 40745682, 81491364]

約数ペア:

[(1, 81491364), (2, 40745682), (3, 27163788), (4, 20372841), (6, 13581894), (9, 9054596), (12, 6790947), (18, 4527298), (36, 2263649), (43, 1895148), (61, 1335924), (86, 947574), (122, 667962), (129, 631716), (172, 473787), (183, 445308), (244, 333981), (258, 315858), (366, 222654), (387, 210572), (516, 157929), (549, 148436), (732, 111327), (774, 105286), (863, 94428), (1098, 74218), (1548, 52643), (1726, 47214), (2196, 37109), (2589, 31476), (2623, 31068), (3452, 23607), (5178, 15738), (5246, 15534), (7767, 10492), (7869, 10356)]