20892068608

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{983}}^1\times {\mathrm{1361}}^1$

素因数の和:2421

約数の個数: 72

約数和(自身を含む): 42460469856

約数和(自身を除く): 21568401248

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 983, 1361, 1952, 1966, 2722, 3904, 3932, 5444, 7808, 7864, 10888, 15616, 15728, 21776, 31456, 43552, 59963, 62912, 83021, 87104, 119926, 125824, 166042, 174208, 239852, 251648, 332084, 348416, 479704, 664168, 959408, 1328336, 1337863, 1918816, 2656672, 2675726, 3837632, 5313344, 5351452, 7675264, 10626688, 10702904, 15350528, 21253376, 21405808, 42811616, 81609643, 85623232, 163219286, 171246464, 326438572, 342492928, 652877144, 1305754288, 2611508576, 5223017152, 10446034304, 20892068608]

約数ペア:

[(1, 20892068608), (2, 10446034304), (4, 5223017152), (8, 2611508576), (16, 1305754288), (32, 652877144), (61, 342492928), (64, 326438572), (122, 171246464), (128, 163219286), (244, 85623232), (256, 81609643), (488, 42811616), (976, 21405808), (983, 21253376), (1361, 15350528), (1952, 10702904), (1966, 10626688), (2722, 7675264), (3904, 5351452), (3932, 5313344), (5444, 3837632), (7808, 2675726), (7864, 2656672), (10888, 1918816), (15616, 1337863), (15728, 1328336), (21776, 959408), (31456, 664168), (43552, 479704), (59963, 348416), (62912, 332084), (83021, 251648), (87104, 239852), (119926, 174208), (125824, 166042)]