313994500

素因数分解:

$2^2\times 5^3\times {\mathrm{491}}^1\times {\mathrm{1279}}^1$

素因数の和:1789

約数の個数: 48

約数和(自身を含む): 687697920

約数和(自身を除く): 373703420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 491, 500, 982, 1279, 1964, 2455, 2558, 4910, 5116, 6395, 9820, 12275, 12790, 24550, 25580, 31975, 49100, 61375, 63950, 122750, 127900, 159875, 245500, 319750, 627989, 639500, 1255978, 2511956, 3139945, 6279890, 12559780, 15699725, 31399450, 62798900, 78498625, 156997250, 313994500]

約数ペア:

[(1, 313994500), (2, 156997250), (4, 78498625), (5, 62798900), (10, 31399450), (20, 15699725), (25, 12559780), (50, 6279890), (100, 3139945), (125, 2511956), (250, 1255978), (491, 639500), (500, 627989), (982, 319750), (1279, 245500), (1964, 159875), (2455, 127900), (2558, 122750), (4910, 63950), (5116, 61375), (6395, 49100), (9820, 31975), (12275, 25580), (12790, 24550)]