20298240

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{881}}^1$

素因数の和:910

約数の個数: 120

約数和(自身を含む): 70378308

約数和(自身を除く): 50080068

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, 881, 960, 1152, 1280, 1440, 1536, 1762, 1920, 2304, 2560, 2643, 2880, 3524, 3840, 4405, 4608, 5286, 5760, 7048, 7680, 7929, 8810, 10572, 11520, 13215, 14096, 15858, 17620, 21144, 23040, 26430, 28192, 31716, 35240, 39645, 42288, 52860, 56384, 63432, 70480, 79290, 84576, 105720, 112768, 126864, 140960, 158580, 169152, 211440, 225536, 253728, 281920, 317160, 338304, 422880, 451072, 507456, 563840, 634320, 676608, 845760, 1014912, 1127680, 1268640, 1353216, 1691520, 2029824, 2255360, 2537280, 3383040, 4059648, 5074560, 6766080, 10149120, 20298240]

約数ペア:

[(1, 20298240), (2, 10149120), (3, 6766080), (4, 5074560), (5, 4059648), (6, 3383040), (8, 2537280), (9, 2255360), (10, 2029824), (12, 1691520), (15, 1353216), (16, 1268640), (18, 1127680), (20, 1014912), (24, 845760), (30, 676608), (32, 634320), (36, 563840), (40, 507456), (45, 451072), (48, 422880), (60, 338304), (64, 317160), (72, 281920), (80, 253728), (90, 225536), (96, 211440), (120, 169152), (128, 158580), (144, 140960), (160, 126864), (180, 112768), (192, 105720), (240, 84576), (256, 79290), (288, 70480), (320, 63432), (360, 56384), (384, 52860), (480, 42288), (512, 39645), (576, 35240), (640, 31716), (720, 28192), (768, 26430), (881, 23040), (960, 21144), (1152, 17620), (1280, 15858), (1440, 14096), (1536, 13215), (1762, 11520), (1920, 10572), (2304, 8810), (2560, 7929), (2643, 7680), (2880, 7048), (3524, 5760), (3840, 5286), (4405, 4608)]