261861278

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{2243}}^1$

素因数の和:2552

約数の個数: 32

約数和(自身を含む): 465315840

約数和(自身を除く): 203454562

約数列:

[1, 2, 7, 14, 31, 62, 217, 269, 434, 538, 1883, 2243, 3766, 4486, 8339, 15701, 16678, 31402, 58373, 69533, 116746, 139066, 486731, 603367, 973462, 1206734, 4223569, 8447138, 18704377, 37408754, 130930639, 261861278]

約数ペア:

[(1, 261861278), (2, 130930639), (7, 37408754), (14, 18704377), (31, 8447138), (62, 4223569), (217, 1206734), (269, 973462), (434, 603367), (538, 486731), (1883, 139066), (2243, 116746), (3766, 69533), (4486, 58373), (8339, 31402), (15701, 16678)]