164031440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33613}}^1$

素因数の和:33687

約数の個数: 40

約数和(自身を含む): 387636648

約数和(自身を除く): 223605208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 33613, 67226, 134452, 168065, 268904, 336130, 537808, 672260, 1344520, 2050393, 2689040, 4100786, 8201572, 10251965, 16403144, 20503930, 32806288, 41007860, 82015720, 164031440]

約数ペア:

[(1, 164031440), (2, 82015720), (4, 41007860), (5, 32806288), (8, 20503930), (10, 16403144), (16, 10251965), (20, 8201572), (40, 4100786), (61, 2689040), (80, 2050393), (122, 1344520), (244, 672260), (305, 537808), (488, 336130), (610, 268904), (976, 168065), (1220, 134452), (2440, 67226), (4880, 33613)]