81274560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2731}}^1$

素因数の和:2782

約数の個数: 112

約数和(自身を含む): 266468352

約数和(自身を除く): 185193792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2731, 2976, 3720, 4960, 5462, 5952, 7440, 8193, 9920, 10924, 13655, 14880, 16386, 21848, 27310, 29760, 32772, 40965, 43696, 54620, 65544, 81930, 84661, 87392, 109240, 131088, 163860, 169322, 174784, 218480, 253983, 262176, 327720, 338644, 423305, 436960, 507966, 524352, 655440, 677288, 846610, 873920, 1015932, 1269915, 1310880, 1354576, 1693220, 2031864, 2539830, 2621760, 2709152, 3386440, 4063728, 5079660, 5418304, 6772880, 8127456, 10159320, 13545760, 16254912, 20318640, 27091520, 40637280, 81274560]

約数ペア:

[(1, 81274560), (2, 40637280), (3, 27091520), (4, 20318640), (5, 16254912), (6, 13545760), (8, 10159320), (10, 8127456), (12, 6772880), (15, 5418304), (16, 5079660), (20, 4063728), (24, 3386440), (30, 2709152), (31, 2621760), (32, 2539830), (40, 2031864), (48, 1693220), (60, 1354576), (62, 1310880), (64, 1269915), (80, 1015932), (93, 873920), (96, 846610), (120, 677288), (124, 655440), (155, 524352), (160, 507966), (186, 436960), (192, 423305), (240, 338644), (248, 327720), (310, 262176), (320, 253983), (372, 218480), (465, 174784), (480, 169322), (496, 163860), (620, 131088), (744, 109240), (930, 87392), (960, 84661), (992, 81930), (1240, 65544), (1488, 54620), (1860, 43696), (1984, 40965), (2480, 32772), (2731, 29760), (2976, 27310), (3720, 21848), (4960, 16386), (5462, 14880), (5952, 13655), (7440, 10924), (8193, 9920)]