164808640

素因数分解:

$2^6\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1459}}^1$

素因数の和:1829

約数の個数: 56

約数和(自身を含む): 393832080

約数和(自身を除く): 229023440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 353, 706, 1412, 1459, 1765, 2824, 2918, 3530, 5648, 5836, 7060, 7295, 11296, 11672, 14120, 14590, 22592, 23344, 28240, 29180, 46688, 56480, 58360, 93376, 112960, 116720, 233440, 466880, 515027, 1030054, 2060108, 2575135, 4120216, 5150270, 8240432, 10300540, 16480864, 20601080, 32961728, 41202160, 82404320, 164808640]

約数ペア:

[(1, 164808640), (2, 82404320), (4, 41202160), (5, 32961728), (8, 20601080), (10, 16480864), (16, 10300540), (20, 8240432), (32, 5150270), (40, 4120216), (64, 2575135), (80, 2060108), (160, 1030054), (320, 515027), (353, 466880), (706, 233440), (1412, 116720), (1459, 112960), (1765, 93376), (2824, 58360), (2918, 56480), (3530, 46688), (5648, 29180), (5836, 28240), (7060, 23344), (7295, 22592), (11296, 14590), (11672, 14120)]