254820

素因数分解:

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

素因数の和:180

約数の個数: 48

約数和(自身を含む): 741888

約数和(自身を除く): 487068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 137, 155, 186, 274, 310, 372, 411, 465, 548, 620, 685, 822, 930, 1370, 1644, 1860, 2055, 2740, 4110, 4247, 8220, 8494, 12741, 16988, 21235, 25482, 42470, 50964, 63705, 84940, 127410, 254820]

約数ペア:

[(1, 254820), (2, 127410), (3, 84940), (4, 63705), (5, 50964), (6, 42470), (10, 25482), (12, 21235), (15, 16988), (20, 12741), (30, 8494), (31, 8220), (60, 4247), (62, 4110), (93, 2740), (124, 2055), (137, 1860), (155, 1644), (186, 1370), (274, 930), (310, 822), (372, 685), (411, 620), (465, 548)]