81121788

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^3\times {\mathrm{1693}}^1$

素因数の和:1736

約数の個数: 72

約数和(自身を含む): 225681456

約数和(自身を除く): 144559668

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1331, 1452, 1693, 2178, 2662, 3386, 3993, 4356, 5079, 5324, 6772, 7986, 10158, 11979, 15237, 15972, 18623, 20316, 23958, 30474, 37246, 47916, 55869, 60948, 74492, 111738, 167607, 204853, 223476, 335214, 409706, 614559, 670428, 819412, 1229118, 1843677, 2253383, 2458236, 3687354, 4506766, 6760149, 7374708, 9013532, 13520298, 20280447, 27040596, 40560894, 81121788]

約数ペア:

[(1, 81121788), (2, 40560894), (3, 27040596), (4, 20280447), (6, 13520298), (9, 9013532), (11, 7374708), (12, 6760149), (18, 4506766), (22, 3687354), (33, 2458236), (36, 2253383), (44, 1843677), (66, 1229118), (99, 819412), (121, 670428), (132, 614559), (198, 409706), (242, 335214), (363, 223476), (396, 204853), (484, 167607), (726, 111738), (1089, 74492), (1331, 60948), (1452, 55869), (1693, 47916), (2178, 37246), (2662, 30474), (3386, 23958), (3993, 20316), (4356, 18623), (5079, 15972), (5324, 15237), (6772, 11979), (7986, 10158)]