1918999680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76883}}^1$

素因数の和:76918

約数の個数: 128

約数和(自身を含む): 6587421120

約数和(自身を除く): 4668421440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1248, 1560, 1664, 1920, 2080, 2496, 3120, 4160, 4992, 6240, 8320, 12480, 24960, 76883, 153766, 230649, 307532, 384415, 461298, 615064, 768830, 922596, 999479, 1153245, 1230128, 1537660, 1845192, 1998958, 2306490, 2460256, 2998437, 3075320, 3690384, 3997916, 4612980, 4920512, 4997395, 5996874, 6150640, 7380768, 7995832, 9225960, 9841024, 9994790, 11993748, 12301280, 14761536, 14992185, 15991664, 18451920, 19989580, 23987496, 24602560, 29523072, 29984370, 31983328, 36903840, 39979160, 47974992, 49205120, 59968740, 63966656, 73807680, 79958320, 95949984, 119937480, 127933312, 147615360, 159916640, 191899968, 239874960, 319833280, 383799936, 479749920, 639666560, 959499840, 1918999680]

約数ペア:

[(1, 1918999680), (2, 959499840), (3, 639666560), (4, 479749920), (5, 383799936), (6, 319833280), (8, 239874960), (10, 191899968), (12, 159916640), (13, 147615360), (15, 127933312), (16, 119937480), (20, 95949984), (24, 79958320), (26, 73807680), (30, 63966656), (32, 59968740), (39, 49205120), (40, 47974992), (48, 39979160), (52, 36903840), (60, 31983328), (64, 29984370), (65, 29523072), (78, 24602560), (80, 23987496), (96, 19989580), (104, 18451920), (120, 15991664), (128, 14992185), (130, 14761536), (156, 12301280), (160, 11993748), (192, 9994790), (195, 9841024), (208, 9225960), (240, 7995832), (260, 7380768), (312, 6150640), (320, 5996874), (384, 4997395), (390, 4920512), (416, 4612980), (480, 3997916), (520, 3690384), (624, 3075320), (640, 2998437), (780, 2460256), (832, 2306490), (960, 1998958), (1040, 1845192), (1248, 1537660), (1560, 1230128), (1664, 1153245), (1920, 999479), (2080, 922596), (2496, 768830), (3120, 615064), (4160, 461298), (4992, 384415), (6240, 307532), (8320, 230649), (12480, 153766), (24960, 76883)]