219268270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{54409}}^1$

素因数の和:54460

約数の個数: 32

約数和(自身を含む): 438762240

約数和(自身を除く): 219493970

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 54409, 108818, 272045, 544090, 707317, 1414634, 1686679, 3373358, 3536585, 7073170, 8433395, 16866790, 21926827, 43853654, 109634135, 219268270]

約数ペア:

[(1, 219268270), (2, 109634135), (5, 43853654), (10, 21926827), (13, 16866790), (26, 8433395), (31, 7073170), (62, 3536585), (65, 3373358), (130, 1686679), (155, 1414634), (310, 707317), (403, 544090), (806, 272045), (2015, 108818), (4030, 54409)]