81018880

素因数分解:

$2^{14}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 207611712

約数和(自身を除く): 126592832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 64, 80, 86, 92, 115, 128, 160, 172, 184, 215, 230, 256, 320, 344, 368, 430, 460, 512, 640, 688, 736, 860, 920, 989, 1024, 1280, 1376, 1472, 1720, 1840, 1978, 2048, 2560, 2752, 2944, 3440, 3680, 3956, 4096, 4945, 5120, 5504, 5888, 6880, 7360, 7912, 8192, 9890, 10240, 11008, 11776, 13760, 14720, 15824, 16384, 19780, 20480, 22016, 23552, 27520, 29440, 31648, 39560, 40960, 44032, 47104, 55040, 58880, 63296, 79120, 81920, 88064, 94208, 110080, 117760, 126592, 158240, 176128, 188416, 220160, 235520, 253184, 316480, 352256, 376832, 440320, 471040, 506368, 632960, 704512, 880640, 942080, 1012736, 1265920, 1761280, 1884160, 2025472, 2531840, 3522560, 4050944, 5063680, 8101888, 10127360, 16203776, 20254720, 40509440, 81018880]

約数ペア:

[(1, 81018880), (2, 40509440), (4, 20254720), (5, 16203776), (8, 10127360), (10, 8101888), (16, 5063680), (20, 4050944), (23, 3522560), (32, 2531840), (40, 2025472), (43, 1884160), (46, 1761280), (64, 1265920), (80, 1012736), (86, 942080), (92, 880640), (115, 704512), (128, 632960), (160, 506368), (172, 471040), (184, 440320), (215, 376832), (230, 352256), (256, 316480), (320, 253184), (344, 235520), (368, 220160), (430, 188416), (460, 176128), (512, 158240), (640, 126592), (688, 117760), (736, 110080), (860, 94208), (920, 88064), (989, 81920), (1024, 79120), (1280, 63296), (1376, 58880), (1472, 55040), (1720, 47104), (1840, 44032), (1978, 40960), (2048, 39560), (2560, 31648), (2752, 29440), (2944, 27520), (3440, 23552), (3680, 22016), (3956, 20480), (4096, 19780), (4945, 16384), (5120, 15824), (5504, 14720), (5888, 13760), (6880, 11776), (7360, 11008), (7912, 10240), (8192, 9890)]