21786869560

素因数分解:

$2^3\times 5^1\times {\mathrm{13883}}^1\times {\mathrm{39233}}^1$

素因数の和:53127

約数の個数: 32

約数和(自身を含む): 49025237040

約数和(自身を除く): 27238367480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13883, 27766, 39233, 55532, 69415, 78466, 111064, 138830, 156932, 196165, 277660, 313864, 392330, 555320, 784660, 1569320, 544671739, 1089343478, 2178686956, 2723358695, 4357373912, 5446717390, 10893434780, 21786869560]

約数ペア:

[(1, 21786869560), (2, 10893434780), (4, 5446717390), (5, 4357373912), (8, 2723358695), (10, 2178686956), (20, 1089343478), (40, 544671739), (13883, 1569320), (27766, 784660), (39233, 555320), (55532, 392330), (69415, 313864), (78466, 277660), (111064, 196165), (138830, 156932)]