664109120

素因数分解:

$2^6\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4159}}^1$

素因数の和:4675

約数の個数: 56

約数和(自身を含む): 1584960000

約数和(自身を除く): 920850880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 499, 998, 1996, 2495, 3992, 4159, 4990, 7984, 8318, 9980, 15968, 16636, 19960, 20795, 31936, 33272, 39920, 41590, 66544, 79840, 83180, 133088, 159680, 166360, 266176, 332720, 665440, 1330880, 2075341, 4150682, 8301364, 10376705, 16602728, 20753410, 33205456, 41506820, 66410912, 83013640, 132821824, 166027280, 332054560, 664109120]

約数ペア:

[(1, 664109120), (2, 332054560), (4, 166027280), (5, 132821824), (8, 83013640), (10, 66410912), (16, 41506820), (20, 33205456), (32, 20753410), (40, 16602728), (64, 10376705), (80, 8301364), (160, 4150682), (320, 2075341), (499, 1330880), (998, 665440), (1996, 332720), (2495, 266176), (3992, 166360), (4159, 159680), (4990, 133088), (7984, 83180), (8318, 79840), (9980, 66544), (15968, 41590), (16636, 39920), (19960, 33272), (20795, 31936)]