257974528

素因数分解:

$2^8\times 7^1\times {\mathrm{359}}^1\times {\mathrm{401}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 591615360

約数和(自身を除く): 333640832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 359, 401, 448, 718, 802, 896, 1436, 1604, 1792, 2513, 2807, 2872, 3208, 5026, 5614, 5744, 6416, 10052, 11228, 11488, 12832, 20104, 22456, 22976, 25664, 40208, 44912, 45952, 51328, 80416, 89824, 91904, 102656, 143959, 160832, 179648, 287918, 321664, 359296, 575836, 643328, 718592, 1007713, 1151672, 2015426, 2303344, 4030852, 4606688, 8061704, 9213376, 16123408, 18426752, 32246816, 36853504, 64493632, 128987264, 257974528]

約数ペア:

[(1, 257974528), (2, 128987264), (4, 64493632), (7, 36853504), (8, 32246816), (14, 18426752), (16, 16123408), (28, 9213376), (32, 8061704), (56, 4606688), (64, 4030852), (112, 2303344), (128, 2015426), (224, 1151672), (256, 1007713), (359, 718592), (401, 643328), (448, 575836), (718, 359296), (802, 321664), (896, 287918), (1436, 179648), (1604, 160832), (1792, 143959), (2513, 102656), (2807, 91904), (2872, 89824), (3208, 80416), (5026, 51328), (5614, 45952), (5744, 44912), (6416, 40208), (10052, 25664), (11228, 22976), (11488, 22456), (12832, 20104)]