4909180

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{631}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 10352160

約数和(自身を除く): 5442980

約数列:

[1, 2, 4, 5, 10, 20, 389, 631, 778, 1262, 1556, 1945, 2524, 3155, 3890, 6310, 7780, 12620, 245459, 490918, 981836, 1227295, 2454590, 4909180]

約数ペア:

[(1, 4909180), (2, 2454590), (4, 1227295), (5, 981836), (10, 490918), (20, 245459), (389, 12620), (631, 7780), (778, 6310), (1262, 3890), (1556, 3155), (1945, 2524)]