659640320

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1099

約数の個数: 104

約数和(自身を含む): 1635578880

約数和(自身を除く): 975938560

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, 8312, 9920, 10240, 10390, 15872, 16624, 19840, 20480, 20780, 31744, 32209, 33248, 39680, 41560, 63488, 64418, 66496, 79360, 83120, 126976, 128836, 132992, 158720, 161045, 166240, 257672, 265984, 317440, 322090, 332480, 515344, 531968, 634880, 644180, 664960, 1030688, 1063936, 1288360, 1329920, 2061376, 2127872, 2576720, 2659840, 4122752, 4255744, 5153440, 5319680, 8245504, 10306880, 10639360, 16491008, 20613760, 21278720, 32982016, 41227520, 65964032, 82455040, 131928064, 164910080, 329820160, 659640320]

約数ペア:

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