28749840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 160

約数和(自身を含む): 103445760

約数和(自身を除く): 74695920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 120, 140, 157, 168, 210, 218, 240, 280, 314, 327, 336, 420, 436, 471, 545, 560, 628, 654, 763, 785, 840, 872, 942, 1090, 1099, 1256, 1308, 1526, 1570, 1635, 1680, 1744, 1884, 2180, 2198, 2289, 2355, 2512, 2616, 3052, 3140, 3270, 3297, 3768, 3815, 4360, 4396, 4578, 4710, 5232, 5495, 6104, 6280, 6540, 6594, 7536, 7630, 8720, 8792, 9156, 9420, 10990, 11445, 12208, 12560, 13080, 13188, 15260, 16485, 17113, 17584, 18312, 18840, 21980, 22890, 26160, 26376, 30520, 32970, 34226, 36624, 37680, 43960, 45780, 51339, 52752, 61040, 65940, 68452, 85565, 87920, 91560, 102678, 119791, 131880, 136904, 171130, 183120, 205356, 239582, 256695, 263760, 273808, 342260, 359373, 410712, 479164, 513390, 598955, 684520, 718746, 821424, 958328, 1026780, 1197910, 1369040, 1437492, 1796865, 1916656, 2053560, 2395820, 2874984, 3593730, 4107120, 4791640, 5749968, 7187460, 9583280, 14374920, 28749840]

約数ペア:

[(1, 28749840), (2, 14374920), (3, 9583280), (4, 7187460), (5, 5749968), (6, 4791640), (7, 4107120), (8, 3593730), (10, 2874984), (12, 2395820), (14, 2053560), (15, 1916656), (16, 1796865), (20, 1437492), (21, 1369040), (24, 1197910), (28, 1026780), (30, 958328), (35, 821424), (40, 718746), (42, 684520), (48, 598955), (56, 513390), (60, 479164), (70, 410712), (80, 359373), (84, 342260), (105, 273808), (109, 263760), (112, 256695), (120, 239582), (140, 205356), (157, 183120), (168, 171130), (210, 136904), (218, 131880), (240, 119791), (280, 102678), (314, 91560), (327, 87920), (336, 85565), (420, 68452), (436, 65940), (471, 61040), (545, 52752), (560, 51339), (628, 45780), (654, 43960), (763, 37680), (785, 36624), (840, 34226), (872, 32970), (942, 30520), (1090, 26376), (1099, 26160), (1256, 22890), (1308, 21980), (1526, 18840), (1570, 18312), (1635, 17584), (1680, 17113), (1744, 16485), (1884, 15260), (2180, 13188), (2198, 13080), (2289, 12560), (2355, 12208), (2512, 11445), (2616, 10990), (3052, 9420), (3140, 9156), (3270, 8792), (3297, 8720), (3768, 7630), (3815, 7536), (4360, 6594), (4396, 6540), (4578, 6280), (4710, 6104), (5232, 5495)]