19981130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153701}}^1$

素因数の和:153721

約数の個数: 16

約数和(自身を含む): 38732904

約数和(自身を除く): 18751774

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 153701, 307402, 768505, 1537010, 1998113, 3996226, 9990565, 19981130]

約数ペア:

[(1, 19981130), (2, 9990565), (5, 3996226), (10, 1998113), (13, 1537010), (26, 768505), (65, 307402), (130, 153701)]