25798840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15731}}^1$

素因数の和:15783

約数の個数: 32

約数和(自身を含む): 59466960

約数和(自身を除く): 33668120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15731, 31462, 62924, 78655, 125848, 157310, 314620, 629240, 644971, 1289942, 2579884, 3224855, 5159768, 6449710, 12899420, 25798840]

約数ペア:

[(1, 25798840), (2, 12899420), (4, 6449710), (5, 5159768), (8, 3224855), (10, 2579884), (20, 1289942), (40, 644971), (41, 629240), (82, 314620), (164, 157310), (205, 125848), (328, 78655), (410, 62924), (820, 31462), (1640, 15731)]