261145920

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{38861}}^1$

素因数の和:38888

約数の個数: 112

約数和(自身を含む): 947611008

約数和(自身を除く): 686465088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 38861, 77722, 116583, 155444, 194305, 233166, 272027, 310888, 388610, 466332, 544054, 582915, 621776, 777220, 816081, 932664, 1088108, 1165830, 1243552, 1360135, 1554440, 1632162, 1865328, 2176216, 2331660, 2487104, 2720270, 3108880, 3264324, 3730656, 4080405, 4352432, 4663320, 5440540, 6217760, 6528648, 7461312, 8160810, 8704864, 9326640, 10881080, 12435520, 13057296, 16321620, 17409728, 18653280, 21762160, 26114592, 32643240, 37306560, 43524320, 52229184, 65286480, 87048640, 130572960, 261145920]

約数ペア:

[(1, 261145920), (2, 130572960), (3, 87048640), (4, 65286480), (5, 52229184), (6, 43524320), (7, 37306560), (8, 32643240), (10, 26114592), (12, 21762160), (14, 18653280), (15, 17409728), (16, 16321620), (20, 13057296), (21, 12435520), (24, 10881080), (28, 9326640), (30, 8704864), (32, 8160810), (35, 7461312), (40, 6528648), (42, 6217760), (48, 5440540), (56, 4663320), (60, 4352432), (64, 4080405), (70, 3730656), (80, 3264324), (84, 3108880), (96, 2720270), (105, 2487104), (112, 2331660), (120, 2176216), (140, 1865328), (160, 1632162), (168, 1554440), (192, 1360135), (210, 1243552), (224, 1165830), (240, 1088108), (280, 932664), (320, 816081), (336, 777220), (420, 621776), (448, 582915), (480, 544054), (560, 466332), (672, 388610), (840, 310888), (960, 272027), (1120, 233166), (1344, 194305), (1680, 155444), (2240, 116583), (3360, 77722), (6720, 38861)]