19971991680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{611887}}^1$

素因数の和:611926

約数の個数: 128

約数和(自身を含む): 67405582080

約数和(自身を除く): 47433590400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 816, 960, 1020, 1088, 1360, 1632, 1920, 2040, 2176, 2720, 3264, 4080, 5440, 6528, 8160, 10880, 16320, 32640, 611887, 1223774, 1835661, 2447548, 3059435, 3671322, 4895096, 6118870, 7342644, 9178305, 9790192, 10402079, 12237740, 14685288, 18356610, 19580384, 20804158, 24475480, 29370576, 31206237, 36713220, 39160768, 41608316, 48950960, 52010395, 58741152, 62412474, 73426440, 78321536, 83216632, 97901920, 104020790, 117482304, 124824948, 146852880, 156031185, 166433264, 195803840, 208041580, 234964608, 249649896, 293705760, 312062370, 332866528, 391607680, 416083160, 499299792, 587411520, 624124740, 665733056, 832166320, 998599584, 1174823040, 1248249480, 1331466112, 1664332640, 1997199168, 2496498960, 3328665280, 3994398336, 4992997920, 6657330560, 9985995840, 19971991680]

約数ペア:

[(1, 19971991680), (2, 9985995840), (3, 6657330560), (4, 4992997920), (5, 3994398336), (6, 3328665280), (8, 2496498960), (10, 1997199168), (12, 1664332640), (15, 1331466112), (16, 1248249480), (17, 1174823040), (20, 998599584), (24, 832166320), (30, 665733056), (32, 624124740), (34, 587411520), (40, 499299792), (48, 416083160), (51, 391607680), (60, 332866528), (64, 312062370), (68, 293705760), (80, 249649896), (85, 234964608), (96, 208041580), (102, 195803840), (120, 166433264), (128, 156031185), (136, 146852880), (160, 124824948), (170, 117482304), (192, 104020790), (204, 97901920), (240, 83216632), (255, 78321536), (272, 73426440), (320, 62412474), (340, 58741152), (384, 52010395), (408, 48950960), (480, 41608316), (510, 39160768), (544, 36713220), (640, 31206237), (680, 29370576), (816, 24475480), (960, 20804158), (1020, 19580384), (1088, 18356610), (1360, 14685288), (1632, 12237740), (1920, 10402079), (2040, 9790192), (2176, 9178305), (2720, 7342644), (3264, 6118870), (4080, 4895096), (5440, 3671322), (6528, 3059435), (8160, 2447548), (10880, 1835661), (16320, 1223774), (32640, 611887)]