128840890

素因数分解:

$2^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{43973}}^1$

素因数の和:44273

約数の個数: 16

約数和(自身を含む): 232710408

約数和(自身を除く): 103869518

約数列:

[1, 2, 5, 10, 293, 586, 1465, 2930, 43973, 87946, 219865, 439730, 12884089, 25768178, 64420445, 128840890]

約数ペア:

[(1, 128840890), (2, 64420445), (5, 25768178), (10, 12884089), (293, 439730), (586, 219865), (1465, 87946), (2930, 43973)]