78320840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{150617}}^1$

素因数の和:150641

約数の個数: 32

約数和(自身を含む): 189778680

約数和(自身を除く): 111457840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 150617, 301234, 602468, 753085, 1204936, 1506170, 1958021, 3012340, 3916042, 6024680, 7832084, 9790105, 15664168, 19580210, 39160420, 78320840]

約数ペア:

[(1, 78320840), (2, 39160420), (4, 19580210), (5, 15664168), (8, 9790105), (10, 7832084), (13, 6024680), (20, 3916042), (26, 3012340), (40, 1958021), (52, 1506170), (65, 1204936), (104, 753085), (130, 602468), (260, 301234), (520, 150617)]