81905040

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{5417}}^1$

素因数の和:5446

約数の個数: 160

約数和(自身を含む): 322479360

約数和(自身を除く): 240574320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 5417, 7560, 10834, 15120, 16251, 21668, 27085, 32502, 37919, 43336, 48753, 54170, 65004, 75838, 81255, 86672, 97506, 108340, 113757, 130008, 146259, 151676, 162510, 189595, 195012, 216680, 227514, 243765, 260016, 292518, 303352, 325020, 341271, 379190, 390024, 433360, 455028, 487530, 568785, 585036, 606704, 650040, 682542, 731295, 758380, 780048, 910056, 975060, 1023813, 1137570, 1170072, 1300080, 1365084, 1462590, 1516760, 1706355, 1820112, 1950120, 2047626, 2275140, 2340144, 2730168, 2925180, 3033520, 3412710, 3900240, 4095252, 4550280, 5119065, 5460336, 5850360, 6825420, 8190504, 9100560, 10238130, 11700720, 13650840, 16381008, 20476260, 27301680, 40952520, 81905040]

約数ペア:

[(1, 81905040), (2, 40952520), (3, 27301680), (4, 20476260), (5, 16381008), (6, 13650840), (7, 11700720), (8, 10238130), (9, 9100560), (10, 8190504), (12, 6825420), (14, 5850360), (15, 5460336), (16, 5119065), (18, 4550280), (20, 4095252), (21, 3900240), (24, 3412710), (27, 3033520), (28, 2925180), (30, 2730168), (35, 2340144), (36, 2275140), (40, 2047626), (42, 1950120), (45, 1820112), (48, 1706355), (54, 1516760), (56, 1462590), (60, 1365084), (63, 1300080), (70, 1170072), (72, 1137570), (80, 1023813), (84, 975060), (90, 910056), (105, 780048), (108, 758380), (112, 731295), (120, 682542), (126, 650040), (135, 606704), (140, 585036), (144, 568785), (168, 487530), (180, 455028), (189, 433360), (210, 390024), (216, 379190), (240, 341271), (252, 325020), (270, 303352), (280, 292518), (315, 260016), (336, 243765), (360, 227514), (378, 216680), (420, 195012), (432, 189595), (504, 162510), (540, 151676), (560, 146259), (630, 130008), (720, 113757), (756, 108340), (840, 97506), (945, 86672), (1008, 81255), (1080, 75838), (1260, 65004), (1512, 54170), (1680, 48753), (1890, 43336), (2160, 37919), (2520, 32502), (3024, 27085), (3780, 21668), (5040, 16251), (5417, 15120), (7560, 10834)]