161661290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{359}}^1\times {\mathrm{919}}^1$

素因数の和:1299

約数の個数: 48

約数和(自身を含む): 339811200

約数和(自身を除く): 178149910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 359, 490, 718, 919, 1795, 1838, 2513, 3590, 4595, 5026, 6433, 9190, 12565, 12866, 17591, 25130, 32165, 35182, 45031, 64330, 87955, 90062, 175910, 225155, 329921, 450310, 659842, 1649605, 2309447, 3299210, 4618894, 11547235, 16166129, 23094470, 32332258, 80830645, 161661290]

約数ペア:

[(1, 161661290), (2, 80830645), (5, 32332258), (7, 23094470), (10, 16166129), (14, 11547235), (35, 4618894), (49, 3299210), (70, 2309447), (98, 1649605), (245, 659842), (359, 450310), (490, 329921), (718, 225155), (919, 175910), (1795, 90062), (1838, 87955), (2513, 64330), (3590, 45031), (4595, 35182), (5026, 32165), (6433, 25130), (9190, 17591), (12565, 12866)]