1387520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{271}}^1$

素因数の和:296

約数の個数: 44

約数和(自身を含む): 3340704

約数和(自身を除く): 1953184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 271, 320, 512, 542, 640, 1024, 1084, 1280, 1355, 2168, 2560, 2710, 4336, 5120, 5420, 8672, 10840, 17344, 21680, 34688, 43360, 69376, 86720, 138752, 173440, 277504, 346880, 693760, 1387520]

約数ペア:

[(1, 1387520), (2, 693760), (4, 346880), (5, 277504), (8, 173440), (10, 138752), (16, 86720), (20, 69376), (32, 43360), (40, 34688), (64, 21680), (80, 17344), (128, 10840), (160, 8672), (256, 5420), (271, 5120), (320, 4336), (512, 2710), (542, 2560), (640, 2168), (1024, 1355), (1084, 1280)]