81394964

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1187}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 170311680

約数和(自身を除く): 88916716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 79, 124, 158, 217, 316, 434, 553, 868, 1106, 1187, 2212, 2374, 2449, 4748, 4898, 8309, 9796, 16618, 17143, 33236, 34286, 36797, 68572, 73594, 93773, 147188, 187546, 257579, 375092, 515158, 656411, 1030316, 1312822, 2625644, 2906963, 5813926, 11627852, 20348741, 40697482, 81394964]

約数ペア:

[(1, 81394964), (2, 40697482), (4, 20348741), (7, 11627852), (14, 5813926), (28, 2906963), (31, 2625644), (62, 1312822), (79, 1030316), (124, 656411), (158, 515158), (217, 375092), (316, 257579), (434, 187546), (553, 147188), (868, 93773), (1106, 73594), (1187, 68572), (2212, 36797), (2374, 34286), (2449, 33236), (4748, 17143), (4898, 16618), (8309, 9796)]