25447700

素因数分解:

$2^2\times 5^2\times {\mathrm{397}}^1\times {\mathrm{641}}^1$

素因数の和:1052

約数の個数: 36

約数和(自身を含む): 55446972

約数和(自身を除く): 29999272

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 641, 794, 1282, 1588, 1985, 2564, 3205, 3970, 6410, 7940, 9925, 12820, 16025, 19850, 32050, 39700, 64100, 254477, 508954, 1017908, 1272385, 2544770, 5089540, 6361925, 12723850, 25447700]

約数ペア:

[(1, 25447700), (2, 12723850), (4, 6361925), (5, 5089540), (10, 2544770), (20, 1272385), (25, 1017908), (50, 508954), (100, 254477), (397, 64100), (641, 39700), (794, 32050), (1282, 19850), (1588, 16025), (1985, 12820), (2564, 9925), (3205, 7940), (3970, 6410)]