20215680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10529}}^1$

素因数の和:10551

約数の個数: 64

約数和(自身を含む): 64443600

約数和(自身を除く): 44227920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10529, 21058, 31587, 42116, 52645, 63174, 84232, 105290, 126348, 157935, 168464, 210580, 252696, 315870, 336928, 421160, 505392, 631740, 673856, 842320, 1010784, 1263480, 1347712, 1684640, 2021568, 2526960, 3369280, 4043136, 5053920, 6738560, 10107840, 20215680]

約数ペア:

[(1, 20215680), (2, 10107840), (3, 6738560), (4, 5053920), (5, 4043136), (6, 3369280), (8, 2526960), (10, 2021568), (12, 1684640), (15, 1347712), (16, 1263480), (20, 1010784), (24, 842320), (30, 673856), (32, 631740), (40, 505392), (48, 421160), (60, 336928), (64, 315870), (80, 252696), (96, 210580), (120, 168464), (128, 157935), (160, 126348), (192, 105290), (240, 84232), (320, 63174), (384, 52645), (480, 42116), (640, 31587), (960, 21058), (1920, 10529)]