21971520

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{2543}}^1$

素因数の和:2569

約数の個数: 112

約数和(自身を含む): 77541120

約数和(自身を除く): 55569600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2543, 2880, 4320, 5086, 7629, 8640, 10172, 12715, 15258, 20344, 22887, 25430, 30516, 38145, 40688, 45774, 50860, 61032, 68661, 76290, 81376, 91548, 101720, 114435, 122064, 137322, 152580, 162752, 183096, 203440, 228870, 244128, 274644, 305160, 343305, 366192, 406880, 457740, 488256, 549288, 610320, 686610, 732384, 813760, 915480, 1098576, 1220640, 1373220, 1464768, 1830960, 2197152, 2441280, 2746440, 3661920, 4394304, 5492880, 7323840, 10985760, 21971520]

約数ペア:

[(1, 21971520), (2, 10985760), (3, 7323840), (4, 5492880), (5, 4394304), (6, 3661920), (8, 2746440), (9, 2441280), (10, 2197152), (12, 1830960), (15, 1464768), (16, 1373220), (18, 1220640), (20, 1098576), (24, 915480), (27, 813760), (30, 732384), (32, 686610), (36, 610320), (40, 549288), (45, 488256), (48, 457740), (54, 406880), (60, 366192), (64, 343305), (72, 305160), (80, 274644), (90, 244128), (96, 228870), (108, 203440), (120, 183096), (135, 162752), (144, 152580), (160, 137322), (180, 122064), (192, 114435), (216, 101720), (240, 91548), (270, 81376), (288, 76290), (320, 68661), (360, 61032), (432, 50860), (480, 45774), (540, 40688), (576, 38145), (720, 30516), (864, 25430), (960, 22887), (1080, 20344), (1440, 15258), (1728, 12715), (2160, 10172), (2543, 8640), (2880, 7629), (4320, 5086)]