82451380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4211}}^1$

素因数の和:4320

約数の個数: 48

約数和(自身を含む): 191056320

約数和(自身を除く): 108604940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4211, 4895, 8422, 9790, 16844, 19580, 21055, 42110, 46321, 84220, 92642, 185284, 231605, 374779, 463210, 749558, 926420, 1499116, 1873895, 3747790, 4122569, 7495580, 8245138, 16490276, 20612845, 41225690, 82451380]

約数ペア:

[(1, 82451380), (2, 41225690), (4, 20612845), (5, 16490276), (10, 8245138), (11, 7495580), (20, 4122569), (22, 3747790), (44, 1873895), (55, 1499116), (89, 926420), (110, 749558), (178, 463210), (220, 374779), (356, 231605), (445, 185284), (890, 92642), (979, 84220), (1780, 46321), (1958, 42110), (3916, 21055), (4211, 19580), (4895, 16844), (8422, 9790)]