2784004990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21415423}}^1$

素因数の和:21415443

約数の個数: 16

約数和(自身を含む): 5396686848

約数和(自身を除く): 2612681858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 21415423, 42830846, 107077115, 214154230, 278400499, 556800998, 1392002495, 2784004990]

約数ペア:

[(1, 2784004990), (2, 1392002495), (5, 556800998), (10, 278400499), (13, 214154230), (26, 107077115), (65, 42830846), (130, 21415423)]