20121557760

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{582221}}^1$

素因数の和:582251

約数の個数: 144

約数和(自身を含む): 71403706080

約数和(自身を除く): 51282148320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2880, 3456, 3840, 4320, 5760, 6912, 8640, 11520, 17280, 34560, 582221, 1164442, 1746663, 2328884, 2911105, 3493326, 4657768, 5239989, 5822210, 6986652, 8733315, 9315536, 10479978, 11644420, 13973304, 15719967, 17466630, 18631072, 20959956, 23288840, 26199945, 27946608, 31439934, 34933260, 37262144, 41919912, 46577680, 52399890, 55893216, 62879868, 69866520, 74524288, 78599835, 83839824, 93155360, 104799780, 111786432, 125759736, 139733040, 149048576, 157199670, 167679648, 186310720, 209599560, 223572864, 251519472, 279466080, 314399340, 335359296, 372621440, 419199120, 447145728, 503038944, 558932160, 628798680, 670718592, 745242880, 838398240, 1006077888, 1117864320, 1257597360, 1341437184, 1676796480, 2012155776, 2235728640, 2515194720, 3353592960, 4024311552, 5030389440, 6707185920, 10060778880, 20121557760]

約数ペア:

[(1, 20121557760), (2, 10060778880), (3, 6707185920), (4, 5030389440), (5, 4024311552), (6, 3353592960), (8, 2515194720), (9, 2235728640), (10, 2012155776), (12, 1676796480), (15, 1341437184), (16, 1257597360), (18, 1117864320), (20, 1006077888), (24, 838398240), (27, 745242880), (30, 670718592), (32, 628798680), (36, 558932160), (40, 503038944), (45, 447145728), (48, 419199120), (54, 372621440), (60, 335359296), (64, 314399340), (72, 279466080), (80, 251519472), (90, 223572864), (96, 209599560), (108, 186310720), (120, 167679648), (128, 157199670), (135, 149048576), (144, 139733040), (160, 125759736), (180, 111786432), (192, 104799780), (216, 93155360), (240, 83839824), (256, 78599835), (270, 74524288), (288, 69866520), (320, 62879868), (360, 55893216), (384, 52399890), (432, 46577680), (480, 41919912), (540, 37262144), (576, 34933260), (640, 31439934), (720, 27946608), (768, 26199945), (864, 23288840), (960, 20959956), (1080, 18631072), (1152, 17466630), (1280, 15719967), (1440, 13973304), (1728, 11644420), (1920, 10479978), (2160, 9315536), (2304, 8733315), (2880, 6986652), (3456, 5822210), (3840, 5239989), (4320, 4657768), (5760, 3493326), (6912, 2911105), (8640, 2328884), (11520, 1746663), (17280, 1164442), (34560, 582221)]