1289600512

素因数分解:

$2^9\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:499

約数の個数: 80

約数和(自身を含む): 2645625312

約数和(自身を除く): 1356024800

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 157, 244, 256, 263, 314, 488, 512, 526, 628, 976, 1052, 1256, 1952, 2104, 2512, 3904, 4208, 5024, 7808, 8416, 9577, 10048, 15616, 16043, 16832, 19154, 20096, 31232, 32086, 33664, 38308, 40192, 41291, 64172, 67328, 76616, 80384, 82582, 128344, 134656, 153232, 165164, 256688, 306464, 330328, 513376, 612928, 660656, 1026752, 1225856, 1321312, 2053504, 2451712, 2518751, 2642624, 4107008, 4903424, 5037502, 5285248, 8214016, 10075004, 10570496, 20150008, 21140992, 40300016, 80600032, 161200064, 322400128, 644800256, 1289600512]

約数ペア:

[(1, 1289600512), (2, 644800256), (4, 322400128), (8, 161200064), (16, 80600032), (32, 40300016), (61, 21140992), (64, 20150008), (122, 10570496), (128, 10075004), (157, 8214016), (244, 5285248), (256, 5037502), (263, 4903424), (314, 4107008), (488, 2642624), (512, 2518751), (526, 2451712), (628, 2053504), (976, 1321312), (1052, 1225856), (1256, 1026752), (1952, 660656), (2104, 612928), (2512, 513376), (3904, 330328), (4208, 306464), (5024, 256688), (7808, 165164), (8416, 153232), (9577, 134656), (10048, 128344), (15616, 82582), (16043, 80384), (16832, 76616), (19154, 67328), (20096, 64172), (31232, 41291), (32086, 40192), (33664, 38308)]