21569520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:407

約数の個数: 160

約数和(自身を含む): 78709248

約数和(自身を除く): 57139728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 336, 347, 370, 420, 444, 518, 555, 560, 592, 694, 740, 777, 840, 888, 1036, 1041, 1110, 1295, 1388, 1480, 1554, 1680, 1735, 1776, 2072, 2082, 2220, 2429, 2590, 2776, 2960, 3108, 3470, 3885, 4144, 4164, 4440, 4858, 5180, 5205, 5552, 6216, 6940, 7287, 7770, 8328, 8880, 9716, 10360, 10410, 12145, 12432, 12839, 13880, 14574, 15540, 16656, 19432, 20720, 20820, 24290, 25678, 27760, 29148, 31080, 36435, 38517, 38864, 41640, 48580, 51356, 58296, 62160, 64195, 72870, 77034, 83280, 89873, 97160, 102712, 116592, 128390, 145740, 154068, 179746, 192585, 194320, 205424, 256780, 269619, 291480, 308136, 359492, 385170, 449365, 513560, 539238, 582960, 616272, 718984, 770340, 898730, 1027120, 1078476, 1348095, 1437968, 1540680, 1797460, 2156952, 2696190, 3081360, 3594920, 4313904, 5392380, 7189840, 10784760, 21569520]

約数ペア:

[(1, 21569520), (2, 10784760), (3, 7189840), (4, 5392380), (5, 4313904), (6, 3594920), (7, 3081360), (8, 2696190), (10, 2156952), (12, 1797460), (14, 1540680), (15, 1437968), (16, 1348095), (20, 1078476), (21, 1027120), (24, 898730), (28, 770340), (30, 718984), (35, 616272), (37, 582960), (40, 539238), (42, 513560), (48, 449365), (56, 385170), (60, 359492), (70, 308136), (74, 291480), (80, 269619), (84, 256780), (105, 205424), (111, 194320), (112, 192585), (120, 179746), (140, 154068), (148, 145740), (168, 128390), (185, 116592), (210, 102712), (222, 97160), (240, 89873), (259, 83280), (280, 77034), (296, 72870), (336, 64195), (347, 62160), (370, 58296), (420, 51356), (444, 48580), (518, 41640), (555, 38864), (560, 38517), (592, 36435), (694, 31080), (740, 29148), (777, 27760), (840, 25678), (888, 24290), (1036, 20820), (1041, 20720), (1110, 19432), (1295, 16656), (1388, 15540), (1480, 14574), (1554, 13880), (1680, 12839), (1735, 12432), (1776, 12145), (2072, 10410), (2082, 10360), (2220, 9716), (2429, 8880), (2590, 8328), (2776, 7770), (2960, 7287), (3108, 6940), (3470, 6216), (3885, 5552), (4144, 5205), (4164, 5180), (4440, 4858)]