239780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 530880

約数和(自身を除く): 291100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 631, 1262, 2524, 3155, 6310, 11989, 12620, 23978, 47956, 59945, 119890, 239780]

約数ペア:

[(1, 239780), (2, 119890), (4, 59945), (5, 47956), (10, 23978), (19, 12620), (20, 11989), (38, 6310), (76, 3155), (95, 2524), (190, 1262), (380, 631)]