19209950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 38263920

約数和(自身を除く): 19053970

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 73, 95, 146, 190, 277, 365, 475, 554, 730, 950, 1385, 1387, 1825, 2770, 2774, 3650, 5263, 6925, 6935, 10526, 13850, 13870, 20221, 26315, 34675, 40442, 52630, 69350, 101105, 131575, 202210, 263150, 384199, 505525, 768398, 1011050, 1920995, 3841990, 9604975, 19209950]

約数ペア:

[(1, 19209950), (2, 9604975), (5, 3841990), (10, 1920995), (19, 1011050), (25, 768398), (38, 505525), (50, 384199), (73, 263150), (95, 202210), (146, 131575), (190, 101105), (277, 69350), (365, 52630), (475, 40442), (554, 34675), (730, 26315), (950, 20221), (1385, 13870), (1387, 13850), (1825, 10526), (2770, 6935), (2774, 6925), (3650, 5263)]