20828110

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 39465792

約数和(自身を除く): 18637682

約数列:

[1, 2, 5, 10, 23, 46, 115, 137, 230, 274, 661, 685, 1322, 1370, 3151, 3305, 6302, 6610, 15203, 15755, 30406, 31510, 76015, 90557, 152030, 181114, 452785, 905570, 2082811, 4165622, 10414055, 20828110]

約数ペア:

[(1, 20828110), (2, 10414055), (5, 4165622), (10, 2082811), (23, 905570), (46, 452785), (115, 181114), (137, 152030), (230, 90557), (274, 76015), (661, 31510), (685, 30406), (1322, 15755), (1370, 15203), (3151, 6610), (3305, 6302)]