820406288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3163}}^1$

素因数の和:3256

約数の個数: 80

約数和(自身を含む): 1812592320

約数和(自身を除く): 992186032

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 43, 52, 58, 86, 104, 116, 172, 208, 232, 344, 377, 464, 559, 688, 754, 1118, 1247, 1508, 2236, 2494, 3016, 3163, 4472, 4988, 6032, 6326, 8944, 9976, 12652, 16211, 19952, 25304, 32422, 41119, 50608, 64844, 82238, 91727, 129688, 136009, 164476, 183454, 259376, 272018, 328952, 366908, 544036, 657904, 733816, 1088072, 1192451, 1467632, 1768117, 2176144, 2384902, 3536234, 3944261, 4769804, 7072468, 7888522, 9539608, 14144936, 15777044, 19079216, 28289872, 31554088, 51275393, 63108176, 102550786, 205101572, 410203144, 820406288]

約数ペア:

[(1, 820406288), (2, 410203144), (4, 205101572), (8, 102550786), (13, 63108176), (16, 51275393), (26, 31554088), (29, 28289872), (43, 19079216), (52, 15777044), (58, 14144936), (86, 9539608), (104, 7888522), (116, 7072468), (172, 4769804), (208, 3944261), (232, 3536234), (344, 2384902), (377, 2176144), (464, 1768117), (559, 1467632), (688, 1192451), (754, 1088072), (1118, 733816), (1247, 657904), (1508, 544036), (2236, 366908), (2494, 328952), (3016, 272018), (3163, 259376), (4472, 183454), (4988, 164476), (6032, 136009), (6326, 129688), (8944, 91727), (9976, 82238), (12652, 64844), (16211, 50608), (19952, 41119), (25304, 32422)]