20945590

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 17830730

約数列:

[1, 2, 5, 10, 59, 118, 131, 262, 271, 295, 542, 590, 655, 1310, 1355, 2710, 7729, 15458, 15989, 31978, 35501, 38645, 71002, 77290, 79945, 159890, 177505, 355010, 2094559, 4189118, 10472795, 20945590]

約数ペア:

[(1, 20945590), (2, 10472795), (5, 4189118), (10, 2094559), (59, 355010), (118, 177505), (131, 159890), (262, 79945), (271, 77290), (295, 71002), (542, 38645), (590, 35501), (655, 31978), (1310, 15989), (1355, 15458), (2710, 7729)]