19936250

素因数分解:

$2^1\times 5^4\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 40

約数和(自身を含む): 38378340

約数和(自身を除く): 18442090

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 389, 410, 625, 778, 1025, 1250, 1945, 2050, 3890, 5125, 9725, 10250, 15949, 19450, 25625, 31898, 48625, 51250, 79745, 97250, 159490, 243125, 398725, 486250, 797450, 1993625, 3987250, 9968125, 19936250]

約数ペア:

[(1, 19936250), (2, 9968125), (5, 3987250), (10, 1993625), (25, 797450), (41, 486250), (50, 398725), (82, 243125), (125, 159490), (205, 97250), (250, 79745), (389, 51250), (410, 48625), (625, 31898), (778, 25625), (1025, 19450), (1250, 15949), (1945, 10250), (2050, 9725), (3890, 5125)]