71980455

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 129024000

約数和(自身を除く): 57043545

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 79, 95, 115, 139, 237, 285, 345, 395, 417, 437, 695, 1185, 1311, 1501, 1817, 2085, 2185, 2641, 3197, 4503, 5451, 6555, 7505, 7923, 9085, 9591, 10981, 13205, 15985, 22515, 27255, 32943, 34523, 39615, 47955, 54905, 60743, 103569, 164715, 172615, 182229, 208639, 252563, 303715, 517845, 625917, 757689, 911145, 1043195, 1262815, 3129585, 3788445, 4798697, 14396091, 23993485, 71980455]

約数ペア:

[(1, 71980455), (3, 23993485), (5, 14396091), (15, 4798697), (19, 3788445), (23, 3129585), (57, 1262815), (69, 1043195), (79, 911145), (95, 757689), (115, 625917), (139, 517845), (237, 303715), (285, 252563), (345, 208639), (395, 182229), (417, 172615), (437, 164715), (695, 103569), (1185, 60743), (1311, 54905), (1501, 47955), (1817, 39615), (2085, 34523), (2185, 32943), (2641, 27255), (3197, 22515), (4503, 15985), (5451, 13205), (6555, 10981), (7505, 9591), (7923, 9085)]