25221550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 24775250

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 139, 190, 191, 278, 382, 475, 695, 950, 955, 1390, 1910, 2641, 3475, 3629, 4775, 5282, 6950, 7258, 9550, 13205, 18145, 26410, 26549, 36290, 53098, 66025, 90725, 132050, 132745, 181450, 265490, 504431, 663725, 1008862, 1327450, 2522155, 5044310, 12610775, 25221550]

約数ペア:

[(1, 25221550), (2, 12610775), (5, 5044310), (10, 2522155), (19, 1327450), (25, 1008862), (38, 663725), (50, 504431), (95, 265490), (139, 181450), (190, 132745), (191, 132050), (278, 90725), (382, 66025), (475, 53098), (695, 36290), (950, 26549), (955, 26410), (1390, 18145), (1910, 13205), (2641, 9550), (3475, 7258), (3629, 6950), (4775, 5282)]