161323904

素因数分解:

$2^7\times 7^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 369036000

約数和(自身を除く): 207712096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 401, 448, 449, 802, 896, 898, 1604, 1796, 2807, 3143, 3208, 3592, 5614, 6286, 6416, 7184, 11228, 12572, 12832, 14368, 22456, 25144, 25664, 28736, 44912, 50288, 51328, 57472, 89824, 100576, 179648, 180049, 201152, 359296, 360098, 402304, 720196, 1260343, 1440392, 2520686, 2880784, 5041372, 5761568, 10082744, 11523136, 20165488, 23046272, 40330976, 80661952, 161323904]

約数ペア:

[(1, 161323904), (2, 80661952), (4, 40330976), (7, 23046272), (8, 20165488), (14, 11523136), (16, 10082744), (28, 5761568), (32, 5041372), (56, 2880784), (64, 2520686), (112, 1440392), (128, 1260343), (224, 720196), (401, 402304), (448, 360098), (449, 359296), (802, 201152), (896, 180049), (898, 179648), (1604, 100576), (1796, 89824), (2807, 57472), (3143, 51328), (3208, 50288), (3592, 44912), (5614, 28736), (6286, 25664), (6416, 25144), (7184, 22456), (11228, 14368), (12572, 12832)]