4205000

素因数分解:

$2^3\times 5^4\times {\mathrm{29}}^2$

素因数の和:84

約数の個数: 60

約数和(自身を含む): 10203765

約数和(自身を除く): 5998765

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 125, 145, 200, 232, 250, 290, 500, 580, 625, 725, 841, 1000, 1160, 1250, 1450, 1682, 2500, 2900, 3364, 3625, 4205, 5000, 5800, 6728, 7250, 8410, 14500, 16820, 18125, 21025, 29000, 33640, 36250, 42050, 72500, 84100, 105125, 145000, 168200, 210250, 420500, 525625, 841000, 1051250, 2102500, 4205000]

約数ペア:

[(1, 4205000), (2, 2102500), (4, 1051250), (5, 841000), (8, 525625), (10, 420500), (20, 210250), (25, 168200), (29, 145000), (40, 105125), (50, 84100), (58, 72500), (100, 42050), (116, 36250), (125, 33640), (145, 29000), (200, 21025), (232, 18125), (250, 16820), (290, 14500), (500, 8410), (580, 7250), (625, 6728), (725, 5800), (841, 5000), (1000, 4205), (1160, 3625), (1250, 3364), (1450, 2900), (1682, 2500)]