84720320

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 112

約数和(自身を含む): 212433408

約数和(自身を除く): 127713088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 47, 64, 80, 86, 94, 131, 160, 172, 188, 215, 235, 262, 320, 344, 376, 430, 470, 524, 655, 688, 752, 860, 940, 1048, 1310, 1376, 1504, 1720, 1880, 2021, 2096, 2620, 2752, 3008, 3440, 3760, 4042, 4192, 5240, 5633, 6157, 6880, 7520, 8084, 8384, 10105, 10480, 11266, 12314, 13760, 15040, 16168, 20210, 20960, 22532, 24628, 28165, 30785, 32336, 40420, 41920, 45064, 49256, 56330, 61570, 64672, 80840, 90128, 98512, 112660, 123140, 129344, 161680, 180256, 197024, 225320, 246280, 264751, 323360, 360512, 394048, 450640, 492560, 529502, 646720, 901280, 985120, 1059004, 1323755, 1802560, 1970240, 2118008, 2647510, 4236016, 5295020, 8472032, 10590040, 16944064, 21180080, 42360160, 84720320]

約数ペア:

[(1, 84720320), (2, 42360160), (4, 21180080), (5, 16944064), (8, 10590040), (10, 8472032), (16, 5295020), (20, 4236016), (32, 2647510), (40, 2118008), (43, 1970240), (47, 1802560), (64, 1323755), (80, 1059004), (86, 985120), (94, 901280), (131, 646720), (160, 529502), (172, 492560), (188, 450640), (215, 394048), (235, 360512), (262, 323360), (320, 264751), (344, 246280), (376, 225320), (430, 197024), (470, 180256), (524, 161680), (655, 129344), (688, 123140), (752, 112660), (860, 98512), (940, 90128), (1048, 80840), (1310, 64672), (1376, 61570), (1504, 56330), (1720, 49256), (1880, 45064), (2021, 41920), (2096, 40420), (2620, 32336), (2752, 30785), (3008, 28165), (3440, 24628), (3760, 22532), (4042, 20960), (4192, 20210), (5240, 16168), (5633, 15040), (6157, 13760), (6880, 12314), (7520, 11266), (8084, 10480), (8384, 10105)]