38979990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{8839}}^1$

素因数の和:8866

約数の個数: 72

約数和(自身を含む): 117907920

約数和(自身を除く): 78927930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 8839, 17678, 26517, 44195, 53034, 61873, 79551, 88390, 123746, 132585, 159102, 185619, 265170, 309365, 371238, 397755, 433111, 556857, 618730, 795510, 866222, 928095, 1113714, 1299333, 1856190, 2165555, 2598666, 2784285, 3897999, 4331110, 5568570, 6496665, 7795998, 12993330, 19489995, 38979990]

約数ペア:

[(1, 38979990), (2, 19489995), (3, 12993330), (5, 7795998), (6, 6496665), (7, 5568570), (9, 4331110), (10, 3897999), (14, 2784285), (15, 2598666), (18, 2165555), (21, 1856190), (30, 1299333), (35, 1113714), (42, 928095), (45, 866222), (49, 795510), (63, 618730), (70, 556857), (90, 433111), (98, 397755), (105, 371238), (126, 309365), (147, 265170), (210, 185619), (245, 159102), (294, 132585), (315, 123746), (441, 88390), (490, 79551), (630, 61873), (735, 53034), (882, 44195), (1470, 26517), (2205, 17678), (4410, 8839)]