81780138

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 207005760

約数和(自身を除く): 125225622

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 37, 54, 61, 66, 74, 99, 111, 122, 183, 198, 222, 297, 333, 366, 407, 549, 594, 666, 671, 814, 999, 1098, 1221, 1342, 1647, 1998, 2013, 2257, 2442, 3294, 3663, 3721, 4026, 4514, 6039, 6771, 7326, 7442, 10989, 11163, 12078, 13542, 18117, 20313, 21978, 22326, 24827, 33489, 36234, 40626, 40931, 49654, 60939, 66978, 74481, 81862, 100467, 121878, 122793, 137677, 148962, 200934, 223443, 245586, 275354, 368379, 413031, 446886, 670329, 736758, 826062, 1105137, 1239093, 1340658, 1514447, 2210274, 2478186, 3028894, 3717279, 4543341, 7434558, 9086682, 13630023, 27260046, 40890069, 81780138]

約数ペア:

[(1, 81780138), (2, 40890069), (3, 27260046), (6, 13630023), (9, 9086682), (11, 7434558), (18, 4543341), (22, 3717279), (27, 3028894), (33, 2478186), (37, 2210274), (54, 1514447), (61, 1340658), (66, 1239093), (74, 1105137), (99, 826062), (111, 736758), (122, 670329), (183, 446886), (198, 413031), (222, 368379), (297, 275354), (333, 245586), (366, 223443), (407, 200934), (549, 148962), (594, 137677), (666, 122793), (671, 121878), (814, 100467), (999, 81862), (1098, 74481), (1221, 66978), (1342, 60939), (1647, 49654), (1998, 40931), (2013, 40626), (2257, 36234), (2442, 33489), (3294, 24827), (3663, 22326), (3721, 21978), (4026, 20313), (4514, 18117), (6039, 13542), (6771, 12078), (7326, 11163), (7442, 10989)]