18697156790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4639493}}^1$

素因数の和:4639544

約数の個数: 32

約数和(自身を含む): 37412879616

約数和(自身を除く): 18715722826

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4639493, 9278986, 23197465, 46394930, 60313409, 120626818, 143824283, 287648566, 301567045, 603134090, 719121415, 1438242830, 1869715679, 3739431358, 9348578395, 18697156790]

約数ペア:

[(1, 18697156790), (2, 9348578395), (5, 3739431358), (10, 1869715679), (13, 1438242830), (26, 719121415), (31, 603134090), (62, 301567045), (65, 287648566), (130, 143824283), (155, 120626818), (310, 60313409), (403, 46394930), (806, 23197465), (2015, 9278986), (4030, 4639493)]