308981990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{22277}}^1$

素因数の和:22376

約数の個数: 32

約数和(自身を含む): 593485920

約数和(自身を除く): 284503930

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 2774, 6935, 13870, 22277, 44554, 111385, 222770, 423263, 846526, 1626221, 2116315, 3252442, 4232630, 8131105, 16262210, 30898199, 61796398, 154490995, 308981990]

約数ペア:

[(1, 308981990), (2, 154490995), (5, 61796398), (10, 30898199), (19, 16262210), (38, 8131105), (73, 4232630), (95, 3252442), (146, 2116315), (190, 1626221), (365, 846526), (730, 423263), (1387, 222770), (2774, 111385), (6935, 44554), (13870, 22277)]