30815760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{128399}}^1$

素因数の和:128415

約数の個数: 40

約数和(自身を含む): 95529600

約数和(自身を除く): 64713840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 128399, 256798, 385197, 513596, 641995, 770394, 1027192, 1283990, 1540788, 1925985, 2054384, 2567980, 3081576, 3851970, 5135960, 6163152, 7703940, 10271920, 15407880, 30815760]

約数ペア:

[(1, 30815760), (2, 15407880), (3, 10271920), (4, 7703940), (5, 6163152), (6, 5135960), (8, 3851970), (10, 3081576), (12, 2567980), (15, 2054384), (16, 1925985), (20, 1540788), (24, 1283990), (30, 1027192), (40, 770394), (48, 641995), (60, 513596), (80, 385197), (120, 256798), (240, 128399)]