664895960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{722713}}^1$

素因数の和:722747

約数の個数: 32

約数和(自身を含む): 1561062240

約数和(自身を除く): 896166280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 722713, 1445426, 2890852, 3613565, 5781704, 7227130, 14454260, 16622399, 28908520, 33244798, 66489596, 83111995, 132979192, 166223990, 332447980, 664895960]

約数ペア:

[(1, 664895960), (2, 332447980), (4, 166223990), (5, 132979192), (8, 83111995), (10, 66489596), (20, 33244798), (23, 28908520), (40, 16622399), (46, 14454260), (92, 7227130), (115, 5781704), (184, 3613565), (230, 2890852), (460, 1445426), (920, 722713)]