21900304000

素因数分解:

$2^7\times 5^3\times {\mathrm{113}}^1\times {\mathrm{12113}}^1$

素因数の和:12255

約数の個数: 128

約数和(自身を含む): 54936020880

約数和(自身を除く): 33035716880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 113, 125, 128, 160, 200, 226, 250, 320, 400, 452, 500, 565, 640, 800, 904, 1000, 1130, 1600, 1808, 2000, 2260, 2825, 3200, 3616, 4000, 4520, 5650, 7232, 8000, 9040, 11300, 12113, 14125, 14464, 16000, 18080, 22600, 24226, 28250, 36160, 45200, 48452, 56500, 60565, 72320, 90400, 96904, 113000, 121130, 180800, 193808, 226000, 242260, 302825, 361600, 387616, 452000, 484520, 605650, 775232, 904000, 969040, 1211300, 1368769, 1514125, 1550464, 1808000, 1938080, 2422600, 2737538, 3028250, 3876160, 4845200, 5475076, 6056500, 6843845, 7752320, 9690400, 10950152, 12113000, 13687690, 19380800, 21900304, 24226000, 27375380, 34219225, 38761600, 43800608, 48452000, 54750760, 68438450, 87601216, 96904000, 109501520, 136876900, 171096125, 175202432, 193808000, 219003040, 273753800, 342192250, 438006080, 547507600, 684384500, 876012160, 1095015200, 1368769000, 2190030400, 2737538000, 4380060800, 5475076000, 10950152000, 21900304000]

約数ペア:

[(1, 21900304000), (2, 10950152000), (4, 5475076000), (5, 4380060800), (8, 2737538000), (10, 2190030400), (16, 1368769000), (20, 1095015200), (25, 876012160), (32, 684384500), (40, 547507600), (50, 438006080), (64, 342192250), (80, 273753800), (100, 219003040), (113, 193808000), (125, 175202432), (128, 171096125), (160, 136876900), (200, 109501520), (226, 96904000), (250, 87601216), (320, 68438450), (400, 54750760), (452, 48452000), (500, 43800608), (565, 38761600), (640, 34219225), (800, 27375380), (904, 24226000), (1000, 21900304), (1130, 19380800), (1600, 13687690), (1808, 12113000), (2000, 10950152), (2260, 9690400), (2825, 7752320), (3200, 6843845), (3616, 6056500), (4000, 5475076), (4520, 4845200), (5650, 3876160), (7232, 3028250), (8000, 2737538), (9040, 2422600), (11300, 1938080), (12113, 1808000), (14125, 1550464), (14464, 1514125), (16000, 1368769), (18080, 1211300), (22600, 969040), (24226, 904000), (28250, 775232), (36160, 605650), (45200, 484520), (48452, 452000), (56500, 387616), (60565, 361600), (72320, 302825), (90400, 242260), (96904, 226000), (113000, 193808), (121130, 180800)]