21014745160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{4801}}^1$

素因数の和:5027

約数の個数: 128

約数和(自身を含む): 51623036640

約数和(自身を除く): 30608291480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 157, 164, 170, 205, 314, 328, 340, 410, 628, 680, 697, 785, 820, 1256, 1394, 1570, 1640, 2669, 2788, 3140, 3485, 4801, 5338, 5576, 6280, 6437, 6970, 9602, 10676, 12874, 13345, 13940, 19204, 21352, 24005, 25748, 26690, 27880, 32185, 38408, 48010, 51496, 53380, 64370, 81617, 96020, 106760, 109429, 128740, 163234, 192040, 196841, 218858, 257480, 326468, 393682, 408085, 437716, 547145, 652936, 753757, 787364, 816170, 875432, 984205, 1094290, 1507514, 1574728, 1632340, 1968410, 2188580, 3015028, 3264680, 3346297, 3768785, 3936820, 4377160, 6030056, 6692594, 7537570, 7873640, 12813869, 13385188, 15075140, 16731485, 25627738, 26770376, 30150280, 30904037, 33462970, 51255476, 61808074, 64069345, 66925940, 102510952, 123616148, 128138690, 133851880, 154520185, 247232296, 256277380, 309040370, 512554760, 525368629, 618080740, 1050737258, 1236161480, 2101474516, 2626843145, 4202949032, 5253686290, 10507372580, 21014745160]

約数ペア:

[(1, 21014745160), (2, 10507372580), (4, 5253686290), (5, 4202949032), (8, 2626843145), (10, 2101474516), (17, 1236161480), (20, 1050737258), (34, 618080740), (40, 525368629), (41, 512554760), (68, 309040370), (82, 256277380), (85, 247232296), (136, 154520185), (157, 133851880), (164, 128138690), (170, 123616148), (205, 102510952), (314, 66925940), (328, 64069345), (340, 61808074), (410, 51255476), (628, 33462970), (680, 30904037), (697, 30150280), (785, 26770376), (820, 25627738), (1256, 16731485), (1394, 15075140), (1570, 13385188), (1640, 12813869), (2669, 7873640), (2788, 7537570), (3140, 6692594), (3485, 6030056), (4801, 4377160), (5338, 3936820), (5576, 3768785), (6280, 3346297), (6437, 3264680), (6970, 3015028), (9602, 2188580), (10676, 1968410), (12874, 1632340), (13345, 1574728), (13940, 1507514), (19204, 1094290), (21352, 984205), (24005, 875432), (25748, 816170), (26690, 787364), (27880, 753757), (32185, 652936), (38408, 547145), (48010, 437716), (51496, 408085), (53380, 393682), (64370, 326468), (81617, 257480), (96020, 218858), (106760, 196841), (109429, 192040), (128740, 163234)]