66947840

素因数分解:

$2^8\times 5^1\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 161786688

約数和(自身を除く): 94838848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 271, 320, 386, 542, 640, 772, 965, 1084, 1280, 1355, 1544, 1930, 2168, 2710, 3088, 3860, 4336, 5420, 6176, 7720, 8672, 10840, 12352, 15440, 17344, 21680, 24704, 30880, 34688, 43360, 49408, 52303, 61760, 69376, 86720, 104606, 123520, 173440, 209212, 247040, 261515, 346880, 418424, 523030, 836848, 1046060, 1673696, 2092120, 3347392, 4184240, 6694784, 8368480, 13389568, 16736960, 33473920, 66947840]

約数ペア:

[(1, 66947840), (2, 33473920), (4, 16736960), (5, 13389568), (8, 8368480), (10, 6694784), (16, 4184240), (20, 3347392), (32, 2092120), (40, 1673696), (64, 1046060), (80, 836848), (128, 523030), (160, 418424), (193, 346880), (256, 261515), (271, 247040), (320, 209212), (386, 173440), (542, 123520), (640, 104606), (772, 86720), (965, 69376), (1084, 61760), (1280, 52303), (1355, 49408), (1544, 43360), (1930, 34688), (2168, 30880), (2710, 24704), (3088, 21680), (3860, 17344), (4336, 15440), (5420, 12352), (6176, 10840), (7720, 8672)]