128399170

素因数分解:

$2^1\times 5^1\times {\mathrm{619}}^1\times {\mathrm{20743}}^1$

素因数の和:21369

約数の個数: 16

約数和(自身を含む): 231503040

約数和(自身を除く): 103103870

約数列:

[1, 2, 5, 10, 619, 1238, 3095, 6190, 20743, 41486, 103715, 207430, 12839917, 25679834, 64199585, 128399170]

約数ペア:

[(1, 128399170), (2, 64199585), (5, 25679834), (10, 12839917), (619, 207430), (1238, 103715), (3095, 41486), (6190, 20743)]