77978405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 102643200

約数和(自身を除く): 24664795

約数列:

[1, 5, 17, 47, 85, 131, 149, 235, 655, 745, 799, 2227, 2533, 3995, 6157, 7003, 11135, 12665, 19519, 30785, 35015, 97595, 104669, 119051, 331823, 523345, 595255, 917393, 1659115, 4586965, 15595681, 77978405]

約数ペア:

[(1, 77978405), (5, 15595681), (17, 4586965), (47, 1659115), (85, 917393), (131, 595255), (149, 523345), (235, 331823), (655, 119051), (745, 104669), (799, 97595), (2227, 35015), (2533, 30785), (3995, 19519), (6157, 12665), (7003, 11135)]