20717280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14387}}^1$

素因数の和:14408

約数の個数: 72

約数和(自身を含む): 70702632

約数和(自身を除く): 49985352

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, 14387, 28774, 43161, 57548, 71935, 86322, 115096, 129483, 143870, 172644, 215805, 230192, 258966, 287740, 345288, 431610, 460384, 517932, 575480, 647415, 690576, 863220, 1035864, 1150960, 1294830, 1381152, 1726440, 2071728, 2301920, 2589660, 3452880, 4143456, 5179320, 6905760, 10358640, 20717280]

約数ペア:

[(1, 20717280), (2, 10358640), (3, 6905760), (4, 5179320), (5, 4143456), (6, 3452880), (8, 2589660), (9, 2301920), (10, 2071728), (12, 1726440), (15, 1381152), (16, 1294830), (18, 1150960), (20, 1035864), (24, 863220), (30, 690576), (32, 647415), (36, 575480), (40, 517932), (45, 460384), (48, 431610), (60, 345288), (72, 287740), (80, 258966), (90, 230192), (96, 215805), (120, 172644), (144, 143870), (160, 129483), (180, 115096), (240, 86322), (288, 71935), (360, 57548), (480, 43161), (720, 28774), (1440, 14387)]