618413380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2378513}}^1$

素因数の和:2378535

約数の個数: 24

約数和(自身を含む): 1398566232

約数和(自身を除く): 780152852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2378513, 4757026, 9514052, 11892565, 23785130, 30920669, 47570260, 61841338, 123682676, 154603345, 309206690, 618413380]

約数ペア:

[(1, 618413380), (2, 309206690), (4, 154603345), (5, 123682676), (10, 61841338), (13, 47570260), (20, 30920669), (26, 23785130), (52, 11892565), (65, 9514052), (130, 4757026), (260, 2378513)]