78391775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 122396928

約数和(自身を除く): 44005153

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 193, 211, 275, 385, 965, 1055, 1351, 1477, 1925, 2123, 2321, 4825, 5275, 6755, 7385, 10615, 11605, 14861, 16247, 33775, 36925, 40723, 53075, 58025, 74305, 81235, 203615, 285061, 371525, 406175, 447953, 1018075, 1425305, 2239765, 3135671, 7126525, 11198825, 15678355, 78391775]

約数ペア:

[(1, 78391775), (5, 15678355), (7, 11198825), (11, 7126525), (25, 3135671), (35, 2239765), (55, 1425305), (77, 1018075), (175, 447953), (193, 406175), (211, 371525), (275, 285061), (385, 203615), (965, 81235), (1055, 74305), (1351, 58025), (1477, 53075), (1925, 40723), (2123, 36925), (2321, 33775), (4825, 16247), (5275, 14861), (6755, 11605), (7385, 10615)]