51988320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:557

約数の個数: 144

約数和(自身を含む): 180048960

約数和(自身を除く): 128060640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 79, 80, 90, 96, 120, 144, 158, 160, 180, 237, 240, 288, 316, 360, 395, 457, 474, 480, 632, 711, 720, 790, 914, 948, 1185, 1264, 1371, 1422, 1440, 1580, 1828, 1896, 2285, 2370, 2528, 2742, 2844, 3160, 3555, 3656, 3792, 4113, 4570, 4740, 5484, 5688, 6320, 6855, 7110, 7312, 7584, 8226, 9140, 9480, 10968, 11376, 12640, 13710, 14220, 14624, 16452, 18280, 18960, 20565, 21936, 22752, 27420, 28440, 32904, 36103, 36560, 37920, 41130, 43872, 54840, 56880, 65808, 72206, 73120, 82260, 108309, 109680, 113760, 131616, 144412, 164520, 180515, 216618, 219360, 288824, 324927, 329040, 361030, 433236, 541545, 577648, 649854, 658080, 722060, 866472, 1083090, 1155296, 1299708, 1444120, 1624635, 1732944, 2166180, 2599416, 2888240, 3249270, 3465888, 4332360, 5198832, 5776480, 6498540, 8664720, 10397664, 12997080, 17329440, 25994160, 51988320]

約数ペア:

[(1, 51988320), (2, 25994160), (3, 17329440), (4, 12997080), (5, 10397664), (6, 8664720), (8, 6498540), (9, 5776480), (10, 5198832), (12, 4332360), (15, 3465888), (16, 3249270), (18, 2888240), (20, 2599416), (24, 2166180), (30, 1732944), (32, 1624635), (36, 1444120), (40, 1299708), (45, 1155296), (48, 1083090), (60, 866472), (72, 722060), (79, 658080), (80, 649854), (90, 577648), (96, 541545), (120, 433236), (144, 361030), (158, 329040), (160, 324927), (180, 288824), (237, 219360), (240, 216618), (288, 180515), (316, 164520), (360, 144412), (395, 131616), (457, 113760), (474, 109680), (480, 108309), (632, 82260), (711, 73120), (720, 72206), (790, 65808), (914, 56880), (948, 54840), (1185, 43872), (1264, 41130), (1371, 37920), (1422, 36560), (1440, 36103), (1580, 32904), (1828, 28440), (1896, 27420), (2285, 22752), (2370, 21936), (2528, 20565), (2742, 18960), (2844, 18280), (3160, 16452), (3555, 14624), (3656, 14220), (3792, 13710), (4113, 12640), (4570, 11376), (4740, 10968), (5484, 9480), (5688, 9140), (6320, 8226), (6855, 7584), (7110, 7312)]