21437280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14887}}^1$

素因数の和:14908

約数の個数: 72

約数和(自身を含む): 73159632

約数和(自身を除く): 51722352

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, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14887, 29774, 44661, 59548, 74435, 89322, 119096, 133983, 148870, 178644, 223305, 238192, 267966, 297740, 357288, 446610, 476384, 535932, 595480, 669915, 714576, 893220, 1071864, 1190960, 1339830, 1429152, 1786440, 2143728, 2381920, 2679660, 3572880, 4287456, 5359320, 7145760, 10718640, 21437280]

約数ペア:

[(1, 21437280), (2, 10718640), (3, 7145760), (4, 5359320), (5, 4287456), (6, 3572880), (8, 2679660), (9, 2381920), (10, 2143728), (12, 1786440), (15, 1429152), (16, 1339830), (18, 1190960), (20, 1071864), (24, 893220), (30, 714576), (32, 669915), (36, 595480), (40, 535932), (45, 476384), (48, 446610), (60, 357288), (72, 297740), (80, 267966), (90, 238192), (96, 223305), (120, 178644), (144, 148870), (160, 133983), (180, 119096), (240, 89322), (288, 74435), (360, 59548), (480, 44661), (720, 29774), (1440, 14887)]