20785920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5413}}^1$

素因数の和:5437

約数の個数: 72

約数和(自身を含む): 66397296

約数和(自身を除く): 45611376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5413, 10826, 16239, 21652, 27065, 32478, 43304, 54130, 64956, 81195, 86608, 108260, 129912, 162390, 173216, 216520, 259824, 324780, 346432, 433040, 519648, 649560, 692864, 866080, 1039296, 1299120, 1385728, 1732160, 2078592, 2598240, 3464320, 4157184, 5196480, 6928640, 10392960, 20785920]

約数ペア:

[(1, 20785920), (2, 10392960), (3, 6928640), (4, 5196480), (5, 4157184), (6, 3464320), (8, 2598240), (10, 2078592), (12, 1732160), (15, 1385728), (16, 1299120), (20, 1039296), (24, 866080), (30, 692864), (32, 649560), (40, 519648), (48, 433040), (60, 346432), (64, 324780), (80, 259824), (96, 216520), (120, 173216), (128, 162390), (160, 129912), (192, 108260), (240, 86608), (256, 81195), (320, 64956), (384, 54130), (480, 43304), (640, 32478), (768, 27065), (960, 21652), (1280, 16239), (1920, 10826), (3840, 5413)]