77959980

素因数分解:

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

素因数の和:8868

約数の個数: 108

約数和(自身を含む): 275118480

約数和(自身を除く): 197158500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 8839, 17678, 26517, 35356, 44195, 53034, 61873, 79551, 88390, 106068, 123746, 132585, 159102, 176780, 185619, 247492, 265170, 309365, 318204, 371238, 397755, 433111, 530340, 556857, 618730, 742476, 795510, 866222, 928095, 1113714, 1237460, 1299333, 1591020, 1732444, 1856190, 2165555, 2227428, 2598666, 2784285, 3712380, 3897999, 4331110, 5197332, 5568570, 6496665, 7795998, 8662220, 11137140, 12993330, 15591996, 19489995, 25986660, 38979990, 77959980]

約数ペア:

[(1, 77959980), (2, 38979990), (3, 25986660), (4, 19489995), (5, 15591996), (6, 12993330), (7, 11137140), (9, 8662220), (10, 7795998), (12, 6496665), (14, 5568570), (15, 5197332), (18, 4331110), (20, 3897999), (21, 3712380), (28, 2784285), (30, 2598666), (35, 2227428), (36, 2165555), (42, 1856190), (45, 1732444), (49, 1591020), (60, 1299333), (63, 1237460), (70, 1113714), (84, 928095), (90, 866222), (98, 795510), (105, 742476), (126, 618730), (140, 556857), (147, 530340), (180, 433111), (196, 397755), (210, 371238), (245, 318204), (252, 309365), (294, 265170), (315, 247492), (420, 185619), (441, 176780), (490, 159102), (588, 132585), (630, 123746), (735, 106068), (882, 88390), (980, 79551), (1260, 61873), (1470, 53034), (1764, 44195), (2205, 35356), (2940, 26517), (4410, 17678), (8820, 8839)]