128666528

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 261160200

約数和(自身を除く): 132493672

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 281, 328, 349, 562, 656, 698, 1124, 1312, 1396, 2248, 2792, 4496, 5584, 8992, 11168, 11521, 14309, 23042, 28618, 46084, 57236, 92168, 98069, 114472, 184336, 196138, 228944, 368672, 392276, 457888, 784552, 1569104, 3138208, 4020829, 8041658, 16083316, 32166632, 64333264, 128666528]

約数ペア:

[(1, 128666528), (2, 64333264), (4, 32166632), (8, 16083316), (16, 8041658), (32, 4020829), (41, 3138208), (82, 1569104), (164, 784552), (281, 457888), (328, 392276), (349, 368672), (562, 228944), (656, 196138), (698, 184336), (1124, 114472), (1312, 98069), (1396, 92168), (2248, 57236), (2792, 46084), (4496, 28618), (5584, 23042), (8992, 14309), (11168, 11521)]