278465280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:722

約数の個数: 144

約数和(自身を含む): 897921024

約数和(自身を除く): 619455744

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, 127, 128, 160, 192, 240, 254, 256, 320, 381, 384, 480, 508, 571, 635, 640, 762, 768, 960, 1016, 1142, 1270, 1280, 1524, 1713, 1905, 1920, 2032, 2284, 2540, 2855, 3048, 3426, 3810, 3840, 4064, 4568, 5080, 5710, 6096, 6852, 7620, 8128, 8565, 9136, 10160, 11420, 12192, 13704, 15240, 16256, 17130, 18272, 20320, 22840, 24384, 27408, 30480, 32512, 34260, 36544, 40640, 45680, 48768, 54816, 60960, 68520, 72517, 73088, 81280, 91360, 97536, 109632, 121920, 137040, 145034, 146176, 162560, 182720, 217551, 219264, 243840, 274080, 290068, 362585, 365440, 435102, 438528, 487680, 548160, 580136, 725170, 730880, 870204, 1087755, 1096320, 1160272, 1450340, 1740408, 2175510, 2192640, 2320544, 2900680, 3480816, 4351020, 4641088, 5801360, 6961632, 8702040, 9282176, 11602720, 13923264, 17404080, 18564352, 23205440, 27846528, 34808160, 46410880, 55693056, 69616320, 92821760, 139232640, 278465280]

約数ペア:

[(1, 278465280), (2, 139232640), (3, 92821760), (4, 69616320), (5, 55693056), (6, 46410880), (8, 34808160), (10, 27846528), (12, 23205440), (15, 18564352), (16, 17404080), (20, 13923264), (24, 11602720), (30, 9282176), (32, 8702040), (40, 6961632), (48, 5801360), (60, 4641088), (64, 4351020), (80, 3480816), (96, 2900680), (120, 2320544), (127, 2192640), (128, 2175510), (160, 1740408), (192, 1450340), (240, 1160272), (254, 1096320), (256, 1087755), (320, 870204), (381, 730880), (384, 725170), (480, 580136), (508, 548160), (571, 487680), (635, 438528), (640, 435102), (762, 365440), (768, 362585), (960, 290068), (1016, 274080), (1142, 243840), (1270, 219264), (1280, 217551), (1524, 182720), (1713, 162560), (1905, 146176), (1920, 145034), (2032, 137040), (2284, 121920), (2540, 109632), (2855, 97536), (3048, 91360), (3426, 81280), (3810, 73088), (3840, 72517), (4064, 68520), (4568, 60960), (5080, 54816), (5710, 48768), (6096, 45680), (6852, 40640), (7620, 36544), (8128, 34260), (8565, 32512), (9136, 30480), (10160, 27408), (11420, 24384), (12192, 22840), (13704, 20320), (15240, 18272), (16256, 17130)]