20768500

素因数分解:

$2^2\times 5^3\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 46060560

約数和(自身を除く): 25292060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 125, 146, 250, 292, 365, 500, 569, 730, 1138, 1460, 1825, 2276, 2845, 3650, 5690, 7300, 9125, 11380, 14225, 18250, 28450, 36500, 41537, 56900, 71125, 83074, 142250, 166148, 207685, 284500, 415370, 830740, 1038425, 2076850, 4153700, 5192125, 10384250, 20768500]

約数ペア:

[(1, 20768500), (2, 10384250), (4, 5192125), (5, 4153700), (10, 2076850), (20, 1038425), (25, 830740), (50, 415370), (73, 284500), (100, 207685), (125, 166148), (146, 142250), (250, 83074), (292, 71125), (365, 56900), (500, 41537), (569, 36500), (730, 28450), (1138, 18250), (1460, 14225), (1825, 11380), (2276, 9125), (2845, 7300), (3650, 5690)]