261399712

素因数分解:

$2^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{3547}}^1$

素因数の和:3618

約数の個数: 72

約数和(自身を含む): 611561664

約数和(自身を除く): 350161952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 94, 98, 112, 188, 196, 224, 329, 376, 392, 658, 752, 784, 1316, 1504, 1568, 2303, 2632, 3547, 4606, 5264, 7094, 9212, 10528, 14188, 18424, 24829, 28376, 36848, 49658, 56752, 73696, 99316, 113504, 166709, 173803, 198632, 333418, 347606, 397264, 666836, 695212, 794528, 1166963, 1333672, 1390424, 2333926, 2667344, 2780848, 4667852, 5334688, 5561696, 8168741, 9335704, 16337482, 18671408, 32674964, 37342816, 65349928, 130699856, 261399712]

約数ペア:

[(1, 261399712), (2, 130699856), (4, 65349928), (7, 37342816), (8, 32674964), (14, 18671408), (16, 16337482), (28, 9335704), (32, 8168741), (47, 5561696), (49, 5334688), (56, 4667852), (94, 2780848), (98, 2667344), (112, 2333926), (188, 1390424), (196, 1333672), (224, 1166963), (329, 794528), (376, 695212), (392, 666836), (658, 397264), (752, 347606), (784, 333418), (1316, 198632), (1504, 173803), (1568, 166709), (2303, 113504), (2632, 99316), (3547, 73696), (4606, 56752), (5264, 49658), (7094, 36848), (9212, 28376), (10528, 24829), (14188, 18424)]