20831220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6091}}^1$

素因数の和:6125

約数の個数: 72

約数和(自身を含む): 66524640

約数和(自身を除く): 45693420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6091, 12182, 18273, 24364, 30455, 36546, 54819, 60910, 73092, 91365, 109638, 115729, 121820, 182730, 219276, 231458, 274095, 347187, 365460, 462916, 548190, 578645, 694374, 1041561, 1096380, 1157290, 1388748, 1735935, 2083122, 2314580, 3471870, 4166244, 5207805, 6943740, 10415610, 20831220]

約数ペア:

[(1, 20831220), (2, 10415610), (3, 6943740), (4, 5207805), (5, 4166244), (6, 3471870), (9, 2314580), (10, 2083122), (12, 1735935), (15, 1388748), (18, 1157290), (19, 1096380), (20, 1041561), (30, 694374), (36, 578645), (38, 548190), (45, 462916), (57, 365460), (60, 347187), (76, 274095), (90, 231458), (95, 219276), (114, 182730), (171, 121820), (180, 115729), (190, 109638), (228, 91365), (285, 73092), (342, 60910), (380, 54819), (570, 36546), (684, 30455), (855, 24364), (1140, 18273), (1710, 12182), (3420, 6091)]