1319280640

素因数分解:

$2^{13}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1101

約数の個数: 112

約数和(自身を含む): 3271357440

約数和(自身を除く): 1952076800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1039, 1240, 1280, 1984, 2048, 2078, 2480, 2560, 3968, 4096, 4156, 4960, 5120, 5195, 7936, 8192, 8312, 9920, 10240, 10390, 15872, 16624, 19840, 20480, 20780, 31744, 32209, 33248, 39680, 40960, 41560, 63488, 64418, 66496, 79360, 83120, 126976, 128836, 132992, 158720, 161045, 166240, 253952, 257672, 265984, 317440, 322090, 332480, 515344, 531968, 634880, 644180, 664960, 1030688, 1063936, 1269760, 1288360, 1329920, 2061376, 2127872, 2576720, 2659840, 4122752, 4255744, 5153440, 5319680, 8245504, 8511488, 10306880, 10639360, 16491008, 20613760, 21278720, 32982016, 41227520, 42557440, 65964032, 82455040, 131928064, 164910080, 263856128, 329820160, 659640320, 1319280640]

約数ペア:

[(1, 1319280640), (2, 659640320), (4, 329820160), (5, 263856128), (8, 164910080), (10, 131928064), (16, 82455040), (20, 65964032), (31, 42557440), (32, 41227520), (40, 32982016), (62, 21278720), (64, 20613760), (80, 16491008), (124, 10639360), (128, 10306880), (155, 8511488), (160, 8245504), (248, 5319680), (256, 5153440), (310, 4255744), (320, 4122752), (496, 2659840), (512, 2576720), (620, 2127872), (640, 2061376), (992, 1329920), (1024, 1288360), (1039, 1269760), (1240, 1063936), (1280, 1030688), (1984, 664960), (2048, 644180), (2078, 634880), (2480, 531968), (2560, 515344), (3968, 332480), (4096, 322090), (4156, 317440), (4960, 265984), (5120, 257672), (5195, 253952), (7936, 166240), (8192, 161045), (8312, 158720), (9920, 132992), (10240, 128836), (10390, 126976), (15872, 83120), (16624, 79360), (19840, 66496), (20480, 64418), (20780, 63488), (31744, 41560), (32209, 40960), (33248, 39680)]