261850514

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 421200000

約数和(自身を除く): 159349486

約数列:

[1, 2, 19, 38, 103, 149, 206, 298, 449, 898, 1957, 2831, 3914, 5662, 8531, 15347, 17062, 30694, 46247, 66901, 92494, 133802, 291593, 583186, 878693, 1271119, 1757386, 2542238, 6890803, 13781606, 130925257, 261850514]

約数ペア:

[(1, 261850514), (2, 130925257), (19, 13781606), (38, 6890803), (103, 2542238), (149, 1757386), (206, 1271119), (298, 878693), (449, 583186), (898, 291593), (1957, 133802), (2831, 92494), (3914, 66901), (5662, 46247), (8531, 30694), (15347, 17062)]