84384170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20939}}^1$

素因数の和:20990

約数の個数: 32

約数和(自身を含む): 168860160

約数和(自身を除く): 84475990

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20939, 41878, 104695, 209390, 272207, 544414, 649109, 1298218, 1361035, 2722070, 3245545, 6491090, 8438417, 16876834, 42192085, 84384170]

約数ペア:

[(1, 84384170), (2, 42192085), (5, 16876834), (10, 8438417), (13, 6491090), (26, 3245545), (31, 2722070), (62, 1361035), (65, 1298218), (130, 649109), (155, 544414), (310, 272207), (403, 209390), (806, 104695), (2015, 41878), (4030, 20939)]