16401320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31541}}^1$

素因数の和:31565

約数の個数: 32

約数和(自身を含む): 39742920

約数和(自身を除く): 23341600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 31541, 63082, 126164, 157705, 252328, 315410, 410033, 630820, 820066, 1261640, 1640132, 2050165, 3280264, 4100330, 8200660, 16401320]

約数ペア:

[(1, 16401320), (2, 8200660), (4, 4100330), (5, 3280264), (8, 2050165), (10, 1640132), (13, 1261640), (20, 820066), (26, 630820), (40, 410033), (52, 315410), (65, 252328), (104, 157705), (130, 126164), (260, 63082), (520, 31541)]