851965990

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{809}}^1\times {\mathrm{1987}}^1$

素因数の和:2856

約数の個数: 32

約数和(自身を含む): 1565192160

約数和(自身を除く): 713226170

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 809, 1618, 1987, 3974, 4045, 8090, 9935, 19870, 42877, 85754, 105311, 210622, 214385, 428770, 526555, 1053110, 1607483, 3214966, 8037415, 16074830, 85196599, 170393198, 425982995, 851965990]

約数ペア:

[(1, 851965990), (2, 425982995), (5, 170393198), (10, 85196599), (53, 16074830), (106, 8037415), (265, 3214966), (530, 1607483), (809, 1053110), (1618, 526555), (1987, 428770), (3974, 214385), (4045, 210622), (8090, 105311), (9935, 85754), (19870, 42877)]