1490803990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{68669}}^1$

素因数の和:68856

約数の個数: 32

約数和(自身を含む): 2907213120

約数和(自身を除く): 1416409130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167, 334, 835, 1670, 2171, 4342, 10855, 21710, 68669, 137338, 343345, 686690, 892697, 1785394, 4463485, 8926970, 11467723, 22935446, 57338615, 114677230, 149080399, 298160798, 745401995, 1490803990]

約数ペア:

[(1, 1490803990), (2, 745401995), (5, 298160798), (10, 149080399), (13, 114677230), (26, 57338615), (65, 22935446), (130, 11467723), (167, 8926970), (334, 4463485), (835, 1785394), (1670, 892697), (2171, 686690), (4342, 343345), (10855, 137338), (21710, 68669)]