19765850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:719

約数の個数: 48

約数和(自身を含む): 40497408

約数和(自身を除く): 20731558

約数列:

[1, 2, 5, 10, 13, 25, 26, 47, 50, 65, 94, 130, 235, 325, 470, 611, 647, 650, 1175, 1222, 1294, 2350, 3055, 3235, 6110, 6470, 8411, 15275, 16175, 16822, 30409, 30550, 32350, 42055, 60818, 84110, 152045, 210275, 304090, 395317, 420550, 760225, 790634, 1520450, 1976585, 3953170, 9882925, 19765850]

約数ペア:

[(1, 19765850), (2, 9882925), (5, 3953170), (10, 1976585), (13, 1520450), (25, 790634), (26, 760225), (47, 420550), (50, 395317), (65, 304090), (94, 210275), (130, 152045), (235, 84110), (325, 60818), (470, 42055), (611, 32350), (647, 30550), (650, 30409), (1175, 16822), (1222, 16175), (1294, 15275), (2350, 8411), (3055, 6470), (3235, 6110)]