12903500

素因数分解:

$2^2\times 5^3\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 28540512

約数和(自身を除く): 15637012

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 131, 197, 250, 262, 394, 500, 524, 655, 788, 985, 1310, 1970, 2620, 3275, 3940, 4925, 6550, 9850, 13100, 16375, 19700, 24625, 25807, 32750, 49250, 51614, 65500, 98500, 103228, 129035, 258070, 516140, 645175, 1290350, 2580700, 3225875, 6451750, 12903500]

約数ペア:

[(1, 12903500), (2, 6451750), (4, 3225875), (5, 2580700), (10, 1290350), (20, 645175), (25, 516140), (50, 258070), (100, 129035), (125, 103228), (131, 98500), (197, 65500), (250, 51614), (262, 49250), (394, 32750), (500, 25807), (524, 24625), (655, 19700), (788, 16375), (985, 13100), (1310, 9850), (1970, 6550), (2620, 4925), (3275, 3940)]