1972240

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 4653720

約数和(自身を除く): 2681480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 277, 356, 445, 554, 712, 890, 1108, 1385, 1424, 1780, 2216, 2770, 3560, 4432, 5540, 7120, 11080, 22160, 24653, 49306, 98612, 123265, 197224, 246530, 394448, 493060, 986120, 1972240]

約数ペア:

[(1, 1972240), (2, 986120), (4, 493060), (5, 394448), (8, 246530), (10, 197224), (16, 123265), (20, 98612), (40, 49306), (80, 24653), (89, 22160), (178, 11080), (277, 7120), (356, 5540), (445, 4432), (554, 3560), (712, 2770), (890, 2216), (1108, 1780), (1385, 1424)]