21961051520

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{8663}}^1$

素因数の和:8932

約数の個数: 128

約数和(自身を含む): 55833935040

約数和(自身を除く): 33872883520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 233, 272, 320, 340, 466, 544, 640, 680, 932, 1088, 1165, 1360, 1864, 2176, 2330, 2720, 3728, 3961, 4660, 5440, 7456, 7922, 8663, 9320, 10880, 14912, 15844, 17326, 18640, 19805, 29824, 31688, 34652, 37280, 39610, 43315, 63376, 69304, 74560, 79220, 86630, 126752, 138608, 147271, 149120, 158440, 173260, 253504, 277216, 294542, 316880, 346520, 507008, 554432, 589084, 633760, 693040, 736355, 1108864, 1178168, 1267520, 1386080, 1472710, 2018479, 2356336, 2535040, 2772160, 2945420, 4036958, 4712672, 5544320, 5890840, 8073916, 9425344, 10092395, 11781680, 16147832, 18850688, 20184790, 23563360, 32295664, 34314143, 40369580, 47126720, 64591328, 68628286, 80739160, 94253440, 129182656, 137256572, 161478320, 171570715, 258365312, 274513144, 322956640, 343141430, 549026288, 645913280, 686282860, 1098052576, 1291826560, 1372565720, 2196105152, 2745131440, 4392210304, 5490262880, 10980525760, 21961051520]

約数ペア:

[(1, 21961051520), (2, 10980525760), (4, 5490262880), (5, 4392210304), (8, 2745131440), (10, 2196105152), (16, 1372565720), (17, 1291826560), (20, 1098052576), (32, 686282860), (34, 645913280), (40, 549026288), (64, 343141430), (68, 322956640), (80, 274513144), (85, 258365312), (128, 171570715), (136, 161478320), (160, 137256572), (170, 129182656), (233, 94253440), (272, 80739160), (320, 68628286), (340, 64591328), (466, 47126720), (544, 40369580), (640, 34314143), (680, 32295664), (932, 23563360), (1088, 20184790), (1165, 18850688), (1360, 16147832), (1864, 11781680), (2176, 10092395), (2330, 9425344), (2720, 8073916), (3728, 5890840), (3961, 5544320), (4660, 4712672), (5440, 4036958), (7456, 2945420), (7922, 2772160), (8663, 2535040), (9320, 2356336), (10880, 2018479), (14912, 1472710), (15844, 1386080), (17326, 1267520), (18640, 1178168), (19805, 1108864), (29824, 736355), (31688, 693040), (34652, 633760), (37280, 589084), (39610, 554432), (43315, 507008), (63376, 346520), (69304, 316880), (74560, 294542), (79220, 277216), (86630, 253504), (126752, 173260), (138608, 158440), (147271, 149120)]