7940140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30539}}^1$

素因数の和:30561

約数の個数: 24

約数和(自身を含む): 17957520

約数和(自身を除く): 10017380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30539, 61078, 122156, 152695, 305390, 397007, 610780, 794014, 1588028, 1985035, 3970070, 7940140]

約数ペア:

[(1, 7940140), (2, 3970070), (4, 1985035), (5, 1588028), (10, 794014), (13, 610780), (20, 397007), (26, 305390), (52, 152695), (65, 122156), (130, 61078), (260, 30539)]