20942217440

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:485

約数の個数: 192

約数和(自身を含む): 51544200960

約数和(自身を除く): 30601983520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 79, 80, 122, 157, 158, 160, 173, 244, 305, 314, 316, 346, 395, 488, 610, 628, 632, 692, 785, 790, 865, 976, 1220, 1256, 1264, 1384, 1570, 1580, 1730, 1952, 2440, 2512, 2528, 2768, 3140, 3160, 3460, 4819, 4880, 5024, 5536, 6280, 6320, 6920, 9577, 9638, 9760, 10553, 12403, 12560, 12640, 13667, 13840, 19154, 19276, 21106, 24095, 24806, 25120, 27161, 27334, 27680, 38308, 38552, 42212, 47885, 48190, 49612, 52765, 54322, 54668, 62015, 68335, 76616, 77104, 84424, 95770, 96380, 99224, 105530, 108644, 109336, 124030, 135805, 136670, 153232, 154208, 168848, 191540, 192760, 198448, 211060, 217288, 218672, 248060, 271610, 273340, 306464, 337696, 383080, 385520, 396896, 422120, 434576, 437344, 496120, 543220, 546680, 756583, 766160, 771040, 833687, 844240, 869152, 992240, 1086440, 1093360, 1513166, 1532320, 1656821, 1667374, 1688480, 1984480, 2145719, 2172880, 2186720, 3026332, 3313642, 3334748, 3782915, 4168435, 4291438, 4345760, 6052664, 6627284, 6669496, 7565830, 8284105, 8336870, 8582876, 10728595, 12105328, 13254568, 13338992, 15131660, 16568210, 16673740, 17165752, 21457190, 24210656, 26509136, 26677984, 30263320, 33136420, 33347480, 34331504, 42914380, 53018272, 60526640, 66272840, 66694960, 68663008, 85828760, 121053280, 130888859, 132545680, 133389920, 171657520, 261777718, 265091360, 343315040, 523555436, 654444295, 1047110872, 1308888590, 2094221744, 2617777180, 4188443488, 5235554360, 10471108720, 20942217440]

約数ペア:

[(1, 20942217440), (2, 10471108720), (4, 5235554360), (5, 4188443488), (8, 2617777180), (10, 2094221744), (16, 1308888590), (20, 1047110872), (32, 654444295), (40, 523555436), (61, 343315040), (79, 265091360), (80, 261777718), (122, 171657520), (157, 133389920), (158, 132545680), (160, 130888859), (173, 121053280), (244, 85828760), (305, 68663008), (314, 66694960), (316, 66272840), (346, 60526640), (395, 53018272), (488, 42914380), (610, 34331504), (628, 33347480), (632, 33136420), (692, 30263320), (785, 26677984), (790, 26509136), (865, 24210656), (976, 21457190), (1220, 17165752), (1256, 16673740), (1264, 16568210), (1384, 15131660), (1570, 13338992), (1580, 13254568), (1730, 12105328), (1952, 10728595), (2440, 8582876), (2512, 8336870), (2528, 8284105), (2768, 7565830), (3140, 6669496), (3160, 6627284), (3460, 6052664), (4819, 4345760), (4880, 4291438), (5024, 4168435), (5536, 3782915), (6280, 3334748), (6320, 3313642), (6920, 3026332), (9577, 2186720), (9638, 2172880), (9760, 2145719), (10553, 1984480), (12403, 1688480), (12560, 1667374), (12640, 1656821), (13667, 1532320), (13840, 1513166), (19154, 1093360), (19276, 1086440), (21106, 992240), (24095, 869152), (24806, 844240), (25120, 833687), (27161, 771040), (27334, 766160), (27680, 756583), (38308, 546680), (38552, 543220), (42212, 496120), (47885, 437344), (48190, 434576), (49612, 422120), (52765, 396896), (54322, 385520), (54668, 383080), (62015, 337696), (68335, 306464), (76616, 273340), (77104, 271610), (84424, 248060), (95770, 218672), (96380, 217288), (99224, 211060), (105530, 198448), (108644, 192760), (109336, 191540), (124030, 168848), (135805, 154208), (136670, 153232)]