18630920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 54743040

約数和(自身を除く): 36112120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 263, 280, 308, 322, 385, 440, 460, 506, 526, 616, 644, 770, 805, 920, 1012, 1052, 1265, 1288, 1315, 1540, 1610, 1771, 1841, 2024, 2104, 2530, 2630, 2893, 3080, 3220, 3542, 3682, 5060, 5260, 5786, 6049, 6440, 7084, 7364, 8855, 9205, 10120, 10520, 11572, 12098, 14168, 14465, 14728, 17710, 18410, 20251, 23144, 24196, 28930, 30245, 35420, 36820, 40502, 42343, 48392, 57860, 60490, 66539, 70840, 73640, 81004, 84686, 101255, 115720, 120980, 133078, 162008, 169372, 202510, 211715, 241960, 266156, 332695, 338744, 405020, 423430, 465773, 532312, 665390, 810040, 846860, 931546, 1330780, 1693720, 1863092, 2328865, 2661560, 3726184, 4657730, 9315460, 18630920]

約数ペア:

[(1, 18630920), (2, 9315460), (4, 4657730), (5, 3726184), (7, 2661560), (8, 2328865), (10, 1863092), (11, 1693720), (14, 1330780), (20, 931546), (22, 846860), (23, 810040), (28, 665390), (35, 532312), (40, 465773), (44, 423430), (46, 405020), (55, 338744), (56, 332695), (70, 266156), (77, 241960), (88, 211715), (92, 202510), (110, 169372), (115, 162008), (140, 133078), (154, 120980), (161, 115720), (184, 101255), (220, 84686), (230, 81004), (253, 73640), (263, 70840), (280, 66539), (308, 60490), (322, 57860), (385, 48392), (440, 42343), (460, 40502), (506, 36820), (526, 35420), (616, 30245), (644, 28930), (770, 24196), (805, 23144), (920, 20251), (1012, 18410), (1052, 17710), (1265, 14728), (1288, 14465), (1315, 14168), (1540, 12098), (1610, 11572), (1771, 10520), (1841, 10120), (2024, 9205), (2104, 8855), (2530, 7364), (2630, 7084), (2893, 6440), (3080, 6049), (3220, 5786), (3542, 5260), (3682, 5060)]