81513406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 135682848

約数和(自身を除く): 54169442

約数列:

[1, 2, 13, 26, 67, 73, 134, 146, 641, 871, 949, 1282, 1742, 1898, 4891, 8333, 9782, 16666, 42947, 46793, 63583, 85894, 93586, 127166, 558311, 608309, 1116622, 1216618, 3135131, 6270262, 40756703, 81513406]

約数ペア:

[(1, 81513406), (2, 40756703), (13, 6270262), (26, 3135131), (67, 1216618), (73, 1116622), (134, 608309), (146, 558311), (641, 127166), (871, 93586), (949, 85894), (1282, 63583), (1742, 46793), (1898, 42947), (4891, 16666), (8333, 9782)]