21158640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29387}}^1$

素因数の和:29406

約数の個数: 60

約数和(自身を含む): 71060184

約数和(自身を除く): 49901544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29387, 58774, 88161, 117548, 146935, 176322, 235096, 264483, 293870, 352644, 440805, 470192, 528966, 587740, 705288, 881610, 1057932, 1175480, 1322415, 1410576, 1763220, 2115864, 2350960, 2644830, 3526440, 4231728, 5289660, 7052880, 10579320, 21158640]

約数ペア:

[(1, 21158640), (2, 10579320), (3, 7052880), (4, 5289660), (5, 4231728), (6, 3526440), (8, 2644830), (9, 2350960), (10, 2115864), (12, 1763220), (15, 1410576), (16, 1322415), (18, 1175480), (20, 1057932), (24, 881610), (30, 705288), (36, 587740), (40, 528966), (45, 470192), (48, 440805), (60, 352644), (72, 293870), (80, 264483), (90, 235096), (120, 176322), (144, 146935), (180, 117548), (240, 88161), (360, 58774), (720, 29387)]