20615760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 240

約数和(自身を含む): 80084160

約数和(自身を除く): 59468400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 99, 110, 114, 120, 132, 137, 144, 152, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 274, 285, 304, 330, 342, 360, 380, 396, 411, 418, 440, 456, 495, 528, 548, 570, 627, 660, 684, 685, 720, 760, 792, 822, 836, 855, 880, 912, 990, 1045, 1096, 1140, 1233, 1254, 1320, 1368, 1370, 1507, 1520, 1584, 1644, 1672, 1710, 1881, 1980, 2055, 2090, 2192, 2280, 2466, 2508, 2603, 2640, 2736, 2740, 3014, 3135, 3288, 3344, 3420, 3762, 3960, 4110, 4180, 4521, 4560, 4932, 5016, 5206, 5480, 6028, 6165, 6270, 6576, 6840, 7524, 7535, 7809, 7920, 8220, 8360, 9042, 9405, 9864, 10032, 10412, 10960, 12056, 12330, 12540, 13015, 13563, 13680, 15048, 15070, 15618, 16440, 16720, 18084, 18810, 19728, 20824, 22605, 23427, 24112, 24660, 25080, 26030, 27126, 28633, 30096, 30140, 31236, 32880, 36168, 37620, 39045, 41648, 45210, 46854, 49320, 50160, 52060, 54252, 57266, 60280, 62472, 67815, 72336, 75240, 78090, 85899, 90420, 93708, 98640, 104120, 108504, 114532, 117135, 120560, 124944, 135630, 143165, 150480, 156180, 171798, 180840, 187416, 208240, 217008, 229064, 234270, 257697, 271260, 286330, 312360, 343596, 361680, 374832, 429495, 458128, 468540, 515394, 542520, 572660, 624720, 687192, 858990, 937080, 1030788, 1085040, 1145320, 1288485, 1374384, 1717980, 1874160, 2061576, 2290640, 2576970, 3435960, 4123152, 5153940, 6871920, 10307880, 20615760]

約数ペア:

[(1, 20615760), (2, 10307880), (3, 6871920), (4, 5153940), (5, 4123152), (6, 3435960), (8, 2576970), (9, 2290640), (10, 2061576), (11, 1874160), (12, 1717980), (15, 1374384), (16, 1288485), (18, 1145320), (19, 1085040), (20, 1030788), (22, 937080), (24, 858990), (30, 687192), (33, 624720), (36, 572660), (38, 542520), (40, 515394), (44, 468540), (45, 458128), (48, 429495), (55, 374832), (57, 361680), (60, 343596), (66, 312360), (72, 286330), (76, 271260), (80, 257697), (88, 234270), (90, 229064), (95, 217008), (99, 208240), (110, 187416), (114, 180840), (120, 171798), (132, 156180), (137, 150480), (144, 143165), (152, 135630), (165, 124944), (171, 120560), (176, 117135), (180, 114532), (190, 108504), (198, 104120), (209, 98640), (220, 93708), (228, 90420), (240, 85899), (264, 78090), (274, 75240), (285, 72336), (304, 67815), (330, 62472), (342, 60280), (360, 57266), (380, 54252), (396, 52060), (411, 50160), (418, 49320), (440, 46854), (456, 45210), (495, 41648), (528, 39045), (548, 37620), (570, 36168), (627, 32880), (660, 31236), (684, 30140), (685, 30096), (720, 28633), (760, 27126), (792, 26030), (822, 25080), (836, 24660), (855, 24112), (880, 23427), (912, 22605), (990, 20824), (1045, 19728), (1096, 18810), (1140, 18084), (1233, 16720), (1254, 16440), (1320, 15618), (1368, 15070), (1370, 15048), (1507, 13680), (1520, 13563), (1584, 13015), (1644, 12540), (1672, 12330), (1710, 12056), (1881, 10960), (1980, 10412), (2055, 10032), (2090, 9864), (2192, 9405), (2280, 9042), (2466, 8360), (2508, 8220), (2603, 7920), (2640, 7809), (2736, 7535), (2740, 7524), (3014, 6840), (3135, 6576), (3288, 6270), (3344, 6165), (3420, 6028), (3762, 5480), (3960, 5206), (4110, 5016), (4180, 4932), (4521, 4560)]