1281821488

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1901}}^1$

素因数の和:2030

約数の個数: 80

約数和(自身を含む): 2742440544

約数和(自身を除く): 1460619056

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 67, 68, 74, 134, 136, 148, 268, 272, 296, 536, 592, 629, 1072, 1139, 1258, 1901, 2278, 2479, 2516, 3802, 4556, 4958, 5032, 7604, 9112, 9916, 10064, 15208, 18224, 19832, 30416, 32317, 39664, 42143, 64634, 70337, 84286, 127367, 129268, 140674, 168572, 254734, 258536, 281348, 337144, 509468, 517072, 562696, 674288, 1018936, 1125392, 1195729, 2037872, 2165239, 2391458, 4330478, 4712579, 4782916, 8660956, 9425158, 9565832, 17321912, 18850316, 19131664, 34643824, 37700632, 75401264, 80113843, 160227686, 320455372, 640910744, 1281821488]

約数ペア:

[(1, 1281821488), (2, 640910744), (4, 320455372), (8, 160227686), (16, 80113843), (17, 75401264), (34, 37700632), (37, 34643824), (67, 19131664), (68, 18850316), (74, 17321912), (134, 9565832), (136, 9425158), (148, 8660956), (268, 4782916), (272, 4712579), (296, 4330478), (536, 2391458), (592, 2165239), (629, 2037872), (1072, 1195729), (1139, 1125392), (1258, 1018936), (1901, 674288), (2278, 562696), (2479, 517072), (2516, 509468), (3802, 337144), (4556, 281348), (4958, 258536), (5032, 254734), (7604, 168572), (9112, 140674), (9916, 129268), (10064, 127367), (15208, 84286), (18224, 70337), (19832, 64634), (30416, 42143), (32317, 39664)]