81240720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30773}}^1$

素因数の和:30800

約数の個数: 80

約数和(自身を含む): 274750272

約数和(自身を除く): 193509552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30773, 61546, 92319, 123092, 153865, 184638, 246184, 307730, 338503, 369276, 461595, 492368, 615460, 677006, 738552, 923190, 1015509, 1230920, 1354012, 1477104, 1692515, 1846380, 2031018, 2461840, 2708024, 3385030, 3692760, 4062036, 5077545, 5416048, 6770060, 7385520, 8124072, 10155090, 13540120, 16248144, 20310180, 27080240, 40620360, 81240720]

約数ペア:

[(1, 81240720), (2, 40620360), (3, 27080240), (4, 20310180), (5, 16248144), (6, 13540120), (8, 10155090), (10, 8124072), (11, 7385520), (12, 6770060), (15, 5416048), (16, 5077545), (20, 4062036), (22, 3692760), (24, 3385030), (30, 2708024), (33, 2461840), (40, 2031018), (44, 1846380), (48, 1692515), (55, 1477104), (60, 1354012), (66, 1230920), (80, 1015509), (88, 923190), (110, 738552), (120, 677006), (132, 615460), (165, 492368), (176, 461595), (220, 369276), (240, 338503), (264, 307730), (330, 246184), (440, 184638), (528, 153865), (660, 123092), (880, 92319), (1320, 61546), (2640, 30773)]