20831520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43399}}^1$

素因数の和:43417

約数の個数: 48

約数和(自身を含む): 65620800

約数和(自身を除く): 44789280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43399, 86798, 130197, 173596, 216995, 260394, 347192, 433990, 520788, 650985, 694384, 867980, 1041576, 1301970, 1388768, 1735960, 2083152, 2603940, 3471920, 4166304, 5207880, 6943840, 10415760, 20831520]

約数ペア:

[(1, 20831520), (2, 10415760), (3, 6943840), (4, 5207880), (5, 4166304), (6, 3471920), (8, 2603940), (10, 2083152), (12, 1735960), (15, 1388768), (16, 1301970), (20, 1041576), (24, 867980), (30, 694384), (32, 650985), (40, 520788), (48, 433990), (60, 347192), (80, 260394), (96, 216995), (120, 173596), (160, 130197), (240, 86798), (480, 43399)]