20436480

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{887}}^1$

素因数の和:916

約数の個数: 120

約数和(自身を含む): 70857072

約数和(自身を除く): 50420592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 887, 960, 1152, 1280, 1440, 1536, 1774, 1920, 2304, 2560, 2661, 2880, 3548, 3840, 4435, 4608, 5322, 5760, 7096, 7680, 7983, 8870, 10644, 11520, 13305, 14192, 15966, 17740, 21288, 23040, 26610, 28384, 31932, 35480, 39915, 42576, 53220, 56768, 63864, 70960, 79830, 85152, 106440, 113536, 127728, 141920, 159660, 170304, 212880, 227072, 255456, 283840, 319320, 340608, 425760, 454144, 510912, 567680, 638640, 681216, 851520, 1021824, 1135360, 1277280, 1362432, 1703040, 2043648, 2270720, 2554560, 3406080, 4087296, 5109120, 6812160, 10218240, 20436480]

約数ペア:

[(1, 20436480), (2, 10218240), (3, 6812160), (4, 5109120), (5, 4087296), (6, 3406080), (8, 2554560), (9, 2270720), (10, 2043648), (12, 1703040), (15, 1362432), (16, 1277280), (18, 1135360), (20, 1021824), (24, 851520), (30, 681216), (32, 638640), (36, 567680), (40, 510912), (45, 454144), (48, 425760), (60, 340608), (64, 319320), (72, 283840), (80, 255456), (90, 227072), (96, 212880), (120, 170304), (128, 159660), (144, 141920), (160, 127728), (180, 113536), (192, 106440), (240, 85152), (256, 79830), (288, 70960), (320, 63864), (360, 56768), (384, 53220), (480, 42576), (512, 39915), (576, 35480), (640, 31932), (720, 28384), (768, 26610), (887, 23040), (960, 21288), (1152, 17740), (1280, 15966), (1440, 14192), (1536, 13305), (1774, 11520), (1920, 10644), (2304, 8870), (2560, 7983), (2661, 7680), (2880, 7096), (3548, 5760), (3840, 5322), (4435, 4608)]