78256958

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{643}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 131561472

約数和(自身を除く): 53304514

約数列:

[1, 2, 13, 26, 31, 62, 151, 302, 403, 643, 806, 1286, 1963, 3926, 4681, 8359, 9362, 16718, 19933, 39866, 60853, 97093, 121706, 194186, 259129, 518258, 1262209, 2524418, 3009883, 6019766, 39128479, 78256958]

約数ペア:

[(1, 78256958), (2, 39128479), (13, 6019766), (26, 3009883), (31, 2524418), (62, 1262209), (151, 518258), (302, 259129), (403, 194186), (643, 121706), (806, 97093), (1286, 60853), (1963, 39866), (3926, 19933), (4681, 16718), (8359, 9362)]