217557940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131059}}^1$

素因数の和:131151

約数の個数: 24

約数和(自身を含む): 462379680

約数和(自身を除く): 244821740

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 131059, 262118, 524236, 655295, 1310590, 2621180, 10877897, 21755794, 43511588, 54389485, 108778970, 217557940]

約数ペア:

[(1, 217557940), (2, 108778970), (4, 54389485), (5, 43511588), (10, 21755794), (20, 10877897), (83, 2621180), (166, 1310590), (332, 655295), (415, 524236), (830, 262118), (1660, 131059)]