768880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1373}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 2044512

約数和(自身を除く): 1275632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1373, 2746, 5492, 6865, 9611, 10984, 13730, 19222, 21968, 27460, 38444, 48055, 54920, 76888, 96110, 109840, 153776, 192220, 384440, 768880]

約数ペア:

[(1, 768880), (2, 384440), (4, 192220), (5, 153776), (7, 109840), (8, 96110), (10, 76888), (14, 54920), (16, 48055), (20, 38444), (28, 27460), (35, 21968), (40, 19222), (56, 13730), (70, 10984), (80, 9611), (112, 6865), (140, 5492), (280, 2746), (560, 1373)]