28748320

素因数分解:

$2^5\times 5^1\times {\mathrm{353}}^1\times {\mathrm{509}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 68244120

約数和(自身を除く): 39495800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 353, 509, 706, 1018, 1412, 1765, 2036, 2545, 2824, 3530, 4072, 5090, 5648, 7060, 8144, 10180, 11296, 14120, 16288, 20360, 28240, 40720, 56480, 81440, 179677, 359354, 718708, 898385, 1437416, 1796770, 2874832, 3593540, 5749664, 7187080, 14374160, 28748320]

約数ペア:

[(1, 28748320), (2, 14374160), (4, 7187080), (5, 5749664), (8, 3593540), (10, 2874832), (16, 1796770), (20, 1437416), (32, 898385), (40, 718708), (80, 359354), (160, 179677), (353, 81440), (509, 56480), (706, 40720), (1018, 28240), (1412, 20360), (1765, 16288), (2036, 14120), (2545, 11296), (2824, 10180), (3530, 8144), (4072, 7060), (5090, 5648)]