51919575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 89803776

約数和(自身を除く): 37884201

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 137, 155, 163, 411, 465, 489, 685, 775, 815, 2055, 2325, 2445, 3425, 4075, 4247, 5053, 10275, 12225, 12741, 15159, 21235, 22331, 25265, 63705, 66993, 75795, 106175, 111655, 126325, 318525, 334965, 378975, 558275, 692261, 1674825, 2076783, 3461305, 10383915, 17306525, 51919575]

約数ペア:

[(1, 51919575), (3, 17306525), (5, 10383915), (15, 3461305), (25, 2076783), (31, 1674825), (75, 692261), (93, 558275), (137, 378975), (155, 334965), (163, 318525), (411, 126325), (465, 111655), (489, 106175), (685, 75795), (775, 66993), (815, 63705), (2055, 25265), (2325, 22331), (2445, 21235), (3425, 15159), (4075, 12741), (4247, 12225), (5053, 10275)]