18921568000

素因数分解:

$2^8\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31121}}^1$

素因数の和:31171

約数の個数: 144

約数和(自身を含む): 49618427040

約数和(自身を除く): 30696859040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 128, 152, 160, 190, 200, 250, 256, 304, 320, 380, 400, 475, 500, 608, 640, 760, 800, 950, 1000, 1216, 1280, 1520, 1600, 1900, 2000, 2375, 2432, 3040, 3200, 3800, 4000, 4750, 4864, 6080, 6400, 7600, 8000, 9500, 12160, 15200, 16000, 19000, 24320, 30400, 31121, 32000, 38000, 60800, 62242, 76000, 121600, 124484, 152000, 155605, 248968, 304000, 311210, 497936, 591299, 608000, 622420, 778025, 995872, 1182598, 1244840, 1556050, 1991744, 2365196, 2489680, 2956495, 3112100, 3890125, 3983488, 4730392, 4979360, 5912990, 6224200, 7780250, 7966976, 9460784, 9958720, 11825980, 12448400, 14782475, 15560500, 18921568, 19917440, 23651960, 24896800, 29564950, 31121000, 37843136, 39834880, 47303920, 49793600, 59129900, 62242000, 73912375, 75686272, 94607840, 99587200, 118259800, 124484000, 147824750, 151372544, 189215680, 199174400, 236519600, 248968000, 295649500, 378431360, 473039200, 497936000, 591299000, 756862720, 946078400, 995872000, 1182598000, 1892156800, 2365196000, 3784313600, 4730392000, 9460784000, 18921568000]

約数ペア:

[(1, 18921568000), (2, 9460784000), (4, 4730392000), (5, 3784313600), (8, 2365196000), (10, 1892156800), (16, 1182598000), (19, 995872000), (20, 946078400), (25, 756862720), (32, 591299000), (38, 497936000), (40, 473039200), (50, 378431360), (64, 295649500), (76, 248968000), (80, 236519600), (95, 199174400), (100, 189215680), (125, 151372544), (128, 147824750), (152, 124484000), (160, 118259800), (190, 99587200), (200, 94607840), (250, 75686272), (256, 73912375), (304, 62242000), (320, 59129900), (380, 49793600), (400, 47303920), (475, 39834880), (500, 37843136), (608, 31121000), (640, 29564950), (760, 24896800), (800, 23651960), (950, 19917440), (1000, 18921568), (1216, 15560500), (1280, 14782475), (1520, 12448400), (1600, 11825980), (1900, 9958720), (2000, 9460784), (2375, 7966976), (2432, 7780250), (3040, 6224200), (3200, 5912990), (3800, 4979360), (4000, 4730392), (4750, 3983488), (4864, 3890125), (6080, 3112100), (6400, 2956495), (7600, 2489680), (8000, 2365196), (9500, 1991744), (12160, 1556050), (15200, 1244840), (16000, 1182598), (19000, 995872), (24320, 778025), (30400, 622420), (31121, 608000), (32000, 591299), (38000, 497936), (60800, 311210), (62242, 304000), (76000, 248968), (121600, 155605), (124484, 152000)]