5161400

素因数分解:

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

素因数の和:344

約数の個数: 48

約数和(自身を含む): 12153240

約数和(自身を除く): 6991840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 197, 200, 262, 394, 524, 655, 788, 985, 1048, 1310, 1576, 1970, 2620, 3275, 3940, 4925, 5240, 6550, 7880, 9850, 13100, 19700, 25807, 26200, 39400, 51614, 103228, 129035, 206456, 258070, 516140, 645175, 1032280, 1290350, 2580700, 5161400]

約数ペア:

[(1, 5161400), (2, 2580700), (4, 1290350), (5, 1032280), (8, 645175), (10, 516140), (20, 258070), (25, 206456), (40, 129035), (50, 103228), (100, 51614), (131, 39400), (197, 26200), (200, 25807), (262, 19700), (394, 13100), (524, 9850), (655, 7880), (788, 6550), (985, 5240), (1048, 4925), (1310, 3940), (1576, 3275), (1970, 2620)]