278312556520

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{19710521}}^1$

素因数の和:19710885

約数の個数: 32

約数和(自身を含む): 627977230920

約数和(自身を除く): 349664674400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 14120, 19710521, 39421042, 78842084, 98552605, 157684168, 197105210, 394210420, 788420840, 6957813913, 13915627826, 27831255652, 34789069565, 55662511304, 69578139130, 139156278260, 278312556520]

約数ペア:

[(1, 278312556520), (2, 139156278260), (4, 69578139130), (5, 55662511304), (8, 34789069565), (10, 27831255652), (20, 13915627826), (40, 6957813913), (353, 788420840), (706, 394210420), (1412, 197105210), (1765, 157684168), (2824, 98552605), (3530, 78842084), (7060, 39421042), (14120, 19710521)]