155518310

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{39979}}^1$

素因数の和:40375

約数の個数: 16

約数和(自身を含む): 280659600

約数和(自身を除く): 125141290

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 39979, 79958, 199895, 399790, 15551831, 31103662, 77759155, 155518310]

約数ペア:

[(1, 155518310), (2, 77759155), (5, 31103662), (10, 15551831), (389, 399790), (778, 199895), (1945, 79958), (3890, 39979)]