320142080

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3733}}^1$

素因数の和:3821

約数の個数: 72

約数和(自身を含む): 778494192

約数和(自身を除く): 458352112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2680, 3733, 4288, 5360, 7466, 8576, 10720, 14932, 17152, 18665, 21440, 29864, 37330, 42880, 59728, 74660, 85760, 119456, 149320, 238912, 250111, 298640, 477824, 500222, 597280, 955648, 1000444, 1194560, 1250555, 2000888, 2389120, 2501110, 4001776, 4778240, 5002220, 8003552, 10004440, 16007104, 20008880, 32014208, 40017760, 64028416, 80035520, 160071040, 320142080]

約数ペア:

[(1, 320142080), (2, 160071040), (4, 80035520), (5, 64028416), (8, 40017760), (10, 32014208), (16, 20008880), (20, 16007104), (32, 10004440), (40, 8003552), (64, 5002220), (67, 4778240), (80, 4001776), (128, 2501110), (134, 2389120), (160, 2000888), (256, 1250555), (268, 1194560), (320, 1000444), (335, 955648), (536, 597280), (640, 500222), (670, 477824), (1072, 298640), (1280, 250111), (1340, 238912), (2144, 149320), (2680, 119456), (3733, 85760), (4288, 74660), (5360, 59728), (7466, 42880), (8576, 37330), (10720, 29864), (14932, 21440), (17152, 18665)]