71928920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{256889}}^1$

素因数の和:256907

約数の個数: 32

約数和(自身を含む): 184960800

約数和(自身を除く): 113031880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 256889, 513778, 1027556, 1284445, 1798223, 2055112, 2568890, 3596446, 5137780, 7192892, 8991115, 10275560, 14385784, 17982230, 35964460, 71928920]

約数ペア:

[(1, 71928920), (2, 35964460), (4, 17982230), (5, 14385784), (7, 10275560), (8, 8991115), (10, 7192892), (14, 5137780), (20, 3596446), (28, 2568890), (35, 2055112), (40, 1798223), (56, 1284445), (70, 1027556), (140, 513778), (280, 256889)]