686281920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^2$

素因数の和:335

約数の個数: 168

約数和(自身を含む): 2254050864

約数和(自身を除く): 1567768944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 139, 148, 160, 185, 192, 222, 240, 278, 296, 320, 370, 417, 444, 480, 555, 556, 592, 695, 740, 834, 888, 960, 1110, 1112, 1184, 1390, 1480, 1668, 1776, 2085, 2220, 2224, 2368, 2780, 2960, 3336, 3552, 4170, 4440, 4448, 5143, 5560, 5920, 6672, 7104, 8340, 8880, 8896, 10286, 11120, 11840, 13344, 15429, 16680, 17760, 19321, 20572, 22240, 25715, 26688, 30858, 33360, 35520, 38642, 41144, 44480, 51430, 57963, 61716, 66720, 77145, 77284, 82288, 96605, 102860, 115926, 123432, 133440, 154290, 154568, 164576, 193210, 205720, 231852, 246864, 289815, 308580, 309136, 329152, 386420, 411440, 463704, 493728, 579630, 617160, 618272, 714877, 772840, 822880, 927408, 987456, 1159260, 1234320, 1236544, 1429754, 1545680, 1645760, 1854816, 2144631, 2318520, 2468640, 2859508, 3091360, 3574385, 3709632, 4289262, 4637040, 4937280, 5719016, 6182720, 7148770, 8578524, 9274080, 10723155, 11438032, 14297540, 17157048, 18548160, 21446310, 22876064, 28595080, 34314096, 42892620, 45752128, 57190160, 68628192, 85785240, 114380320, 137256384, 171570480, 228760640, 343140960, 686281920]

約数ペア:

[(1, 686281920), (2, 343140960), (3, 228760640), (4, 171570480), (5, 137256384), (6, 114380320), (8, 85785240), (10, 68628192), (12, 57190160), (15, 45752128), (16, 42892620), (20, 34314096), (24, 28595080), (30, 22876064), (32, 21446310), (37, 18548160), (40, 17157048), (48, 14297540), (60, 11438032), (64, 10723155), (74, 9274080), (80, 8578524), (96, 7148770), (111, 6182720), (120, 5719016), (139, 4937280), (148, 4637040), (160, 4289262), (185, 3709632), (192, 3574385), (222, 3091360), (240, 2859508), (278, 2468640), (296, 2318520), (320, 2144631), (370, 1854816), (417, 1645760), (444, 1545680), (480, 1429754), (555, 1236544), (556, 1234320), (592, 1159260), (695, 987456), (740, 927408), (834, 822880), (888, 772840), (960, 714877), (1110, 618272), (1112, 617160), (1184, 579630), (1390, 493728), (1480, 463704), (1668, 411440), (1776, 386420), (2085, 329152), (2220, 309136), (2224, 308580), (2368, 289815), (2780, 246864), (2960, 231852), (3336, 205720), (3552, 193210), (4170, 164576), (4440, 154568), (4448, 154290), (5143, 133440), (5560, 123432), (5920, 115926), (6672, 102860), (7104, 96605), (8340, 82288), (8880, 77284), (8896, 77145), (10286, 66720), (11120, 61716), (11840, 57963), (13344, 51430), (15429, 44480), (16680, 41144), (17760, 38642), (19321, 35520), (20572, 33360), (22240, 30858), (25715, 26688)]