20778117120

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{225457}}^1$

素因数の和:225490

約数の個数: 144

約数和(自身を含む): 72013539780

約数和(自身を除く): 51235422660

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, 960, 1024, 1152, 1280, 1440, 1536, 1920, 2048, 2304, 2560, 2880, 3072, 3840, 4608, 5120, 5760, 6144, 7680, 9216, 10240, 11520, 15360, 18432, 23040, 30720, 46080, 92160, 225457, 450914, 676371, 901828, 1127285, 1352742, 1803656, 2029113, 2254570, 2705484, 3381855, 3607312, 4058226, 4509140, 5410968, 6763710, 7214624, 8116452, 9018280, 10145565, 10821936, 13527420, 14429248, 16232904, 18036560, 20291130, 21643872, 27054840, 28858496, 32465808, 36073120, 40582260, 43287744, 54109680, 57716992, 64931616, 72146240, 81164520, 86575488, 108219360, 115433984, 129863232, 144292480, 162329040, 173150976, 216438720, 230867968, 259726464, 288584960, 324658080, 346301952, 432877440, 461735936, 519452928, 577169920, 649316160, 692603904, 865754880, 1038905856, 1154339840, 1298632320, 1385207808, 1731509760, 2077811712, 2308679680, 2597264640, 3463019520, 4155623424, 5194529280, 6926039040, 10389058560, 20778117120]

約数ペア:

[(1, 20778117120), (2, 10389058560), (3, 6926039040), (4, 5194529280), (5, 4155623424), (6, 3463019520), (8, 2597264640), (9, 2308679680), (10, 2077811712), (12, 1731509760), (15, 1385207808), (16, 1298632320), (18, 1154339840), (20, 1038905856), (24, 865754880), (30, 692603904), (32, 649316160), (36, 577169920), (40, 519452928), (45, 461735936), (48, 432877440), (60, 346301952), (64, 324658080), (72, 288584960), (80, 259726464), (90, 230867968), (96, 216438720), (120, 173150976), (128, 162329040), (144, 144292480), (160, 129863232), (180, 115433984), (192, 108219360), (240, 86575488), (256, 81164520), (288, 72146240), (320, 64931616), (360, 57716992), (384, 54109680), (480, 43287744), (512, 40582260), (576, 36073120), (640, 32465808), (720, 28858496), (768, 27054840), (960, 21643872), (1024, 20291130), (1152, 18036560), (1280, 16232904), (1440, 14429248), (1536, 13527420), (1920, 10821936), (2048, 10145565), (2304, 9018280), (2560, 8116452), (2880, 7214624), (3072, 6763710), (3840, 5410968), (4608, 4509140), (5120, 4058226), (5760, 3607312), (6144, 3381855), (7680, 2705484), (9216, 2254570), (10240, 2029113), (11520, 1803656), (15360, 1352742), (18432, 1127285), (23040, 901828), (30720, 676371), (46080, 450914), (92160, 225457)]