51318640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20693}}^1$

素因数の和:20737

約数の個数: 40

約数和(自身を含む): 123170688

約数和(自身を除く): 71852048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20693, 41386, 82772, 103465, 165544, 206930, 331088, 413860, 641483, 827720, 1282966, 1655440, 2565932, 3207415, 5131864, 6414830, 10263728, 12829660, 25659320, 51318640]

約数ペア:

[(1, 51318640), (2, 25659320), (4, 12829660), (5, 10263728), (8, 6414830), (10, 5131864), (16, 3207415), (20, 2565932), (31, 1655440), (40, 1282966), (62, 827720), (80, 641483), (124, 413860), (155, 331088), (248, 206930), (310, 165544), (496, 103465), (620, 82772), (1240, 41386), (2480, 20693)]