639406080

素因数分解:

$2^{12}\times 3^2\times 5^1\times {\mathrm{3469}}^1$

素因数の和:3504

約数の個数: 156

約数和(自身を含む): 2216976060

約数和(自身を除く): 1577569980

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, 3469, 3840, 4096, 4608, 5120, 5760, 6144, 6938, 7680, 9216, 10240, 10407, 11520, 12288, 13876, 15360, 17345, 18432, 20480, 20814, 23040, 27752, 30720, 31221, 34690, 36864, 41628, 46080, 52035, 55504, 61440, 62442, 69380, 83256, 92160, 104070, 111008, 124884, 138760, 156105, 166512, 184320, 208140, 222016, 249768, 277520, 312210, 333024, 416280, 444032, 499536, 555040, 624420, 666048, 832560, 888064, 999072, 1110080, 1248840, 1332096, 1665120, 1776128, 1998144, 2220160, 2497680, 2664192, 3330240, 3552256, 3996288, 4440320, 4995360, 5328384, 6660480, 7104512, 7992576, 8880640, 9990720, 10656768, 13320960, 14209024, 15985152, 17761280, 19981440, 21313536, 26641920, 31970304, 35522560, 39962880, 42627072, 53283840, 63940608, 71045120, 79925760, 106567680, 127881216, 159851520, 213135360, 319703040, 639406080]

約数ペア:

[(1, 639406080), (2, 319703040), (3, 213135360), (4, 159851520), (5, 127881216), (6, 106567680), (8, 79925760), (9, 71045120), (10, 63940608), (12, 53283840), (15, 42627072), (16, 39962880), (18, 35522560), (20, 31970304), (24, 26641920), (30, 21313536), (32, 19981440), (36, 17761280), (40, 15985152), (45, 14209024), (48, 13320960), (60, 10656768), (64, 9990720), (72, 8880640), (80, 7992576), (90, 7104512), (96, 6660480), (120, 5328384), (128, 4995360), (144, 4440320), (160, 3996288), (180, 3552256), (192, 3330240), (240, 2664192), (256, 2497680), (288, 2220160), (320, 1998144), (360, 1776128), (384, 1665120), (480, 1332096), (512, 1248840), (576, 1110080), (640, 999072), (720, 888064), (768, 832560), (960, 666048), (1024, 624420), (1152, 555040), (1280, 499536), (1440, 444032), (1536, 416280), (1920, 333024), (2048, 312210), (2304, 277520), (2560, 249768), (2880, 222016), (3072, 208140), (3469, 184320), (3840, 166512), (4096, 156105), (4608, 138760), (5120, 124884), (5760, 111008), (6144, 104070), (6938, 92160), (7680, 83256), (9216, 69380), (10240, 62442), (10407, 61440), (11520, 55504), (12288, 52035), (13876, 46080), (15360, 41628), (17345, 36864), (18432, 34690), (20480, 31221), (20814, 30720), (23040, 27752)]