78409660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15137}}^1$

素因数の和:15190

約数の個数: 48

約数和(自身を含む): 193281984

約数和(自身を除く): 114872324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 15137, 30274, 60548, 75685, 105959, 151370, 211918, 302740, 423836, 529795, 560069, 1059590, 1120138, 2119180, 2240276, 2800345, 3920483, 5600690, 7840966, 11201380, 15681932, 19602415, 39204830, 78409660]

約数ペア:

[(1, 78409660), (2, 39204830), (4, 19602415), (5, 15681932), (7, 11201380), (10, 7840966), (14, 5600690), (20, 3920483), (28, 2800345), (35, 2240276), (37, 2119180), (70, 1120138), (74, 1059590), (140, 560069), (148, 529795), (185, 423836), (259, 302740), (370, 211918), (518, 151370), (740, 105959), (1036, 75685), (1295, 60548), (2590, 30274), (5180, 15137)]