21905280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3803}}^1$

素因数の和:3828

約数の個数: 96

約数和(自身を含む): 75661560

約数和(自身を除く): 53756280

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, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3803, 5760, 7606, 11409, 15212, 19015, 22818, 30424, 34227, 38030, 45636, 57045, 60848, 68454, 76060, 91272, 114090, 121696, 136908, 152120, 171135, 182544, 228180, 243392, 273816, 304240, 342270, 365088, 456360, 486784, 547632, 608480, 684540, 730176, 912720, 1095264, 1216960, 1369080, 1460352, 1825440, 2190528, 2433920, 2738160, 3650880, 4381056, 5476320, 7301760, 10952640, 21905280]

約数ペア:

[(1, 21905280), (2, 10952640), (3, 7301760), (4, 5476320), (5, 4381056), (6, 3650880), (8, 2738160), (9, 2433920), (10, 2190528), (12, 1825440), (15, 1460352), (16, 1369080), (18, 1216960), (20, 1095264), (24, 912720), (30, 730176), (32, 684540), (36, 608480), (40, 547632), (45, 486784), (48, 456360), (60, 365088), (64, 342270), (72, 304240), (80, 273816), (90, 243392), (96, 228180), (120, 182544), (128, 171135), (144, 152120), (160, 136908), (180, 121696), (192, 114090), (240, 91272), (288, 76060), (320, 68454), (360, 60848), (384, 57045), (480, 45636), (576, 38030), (640, 34227), (720, 30424), (960, 22818), (1152, 19015), (1440, 15212), (1920, 11409), (2880, 7606), (3803, 5760)]