20554080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42821}}^1$

素因数の和:42839

約数の個数: 48

約数和(自身を含む): 64746864

約数和(自身を除く): 44192784

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, 42821, 85642, 128463, 171284, 214105, 256926, 342568, 428210, 513852, 642315, 685136, 856420, 1027704, 1284630, 1370272, 1712840, 2055408, 2569260, 3425680, 4110816, 5138520, 6851360, 10277040, 20554080]

約数ペア:

[(1, 20554080), (2, 10277040), (3, 6851360), (4, 5138520), (5, 4110816), (6, 3425680), (8, 2569260), (10, 2055408), (12, 1712840), (15, 1370272), (16, 1284630), (20, 1027704), (24, 856420), (30, 685136), (32, 642315), (40, 513852), (48, 428210), (60, 342568), (80, 256926), (96, 214105), (120, 171284), (160, 128463), (240, 85642), (480, 42821)]