20405040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85021}}^1$

素因数の和:85037

約数の個数: 40

約数和(自身を含む): 63256368

約数和(自身を除く): 42851328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85021, 170042, 255063, 340084, 425105, 510126, 680168, 850210, 1020252, 1275315, 1360336, 1700420, 2040504, 2550630, 3400840, 4081008, 5101260, 6801680, 10202520, 20405040]

約数ペア:

[(1, 20405040), (2, 10202520), (3, 6801680), (4, 5101260), (5, 4081008), (6, 3400840), (8, 2550630), (10, 2040504), (12, 1700420), (15, 1360336), (16, 1275315), (20, 1020252), (24, 850210), (30, 680168), (40, 510126), (48, 425105), (60, 340084), (80, 255063), (120, 170042), (240, 85021)]