20842810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{673}}^1$

素因数の和:862

約数の個数: 32

約数和(自身を含む): 39792960

約数和(自身を除く): 18950150

約数列:

[1, 2, 5, 10, 19, 38, 95, 163, 190, 326, 673, 815, 1346, 1630, 3097, 3365, 6194, 6730, 12787, 15485, 25574, 30970, 63935, 109699, 127870, 219398, 548495, 1096990, 2084281, 4168562, 10421405, 20842810]

約数ペア:

[(1, 20842810), (2, 10421405), (5, 4168562), (10, 2084281), (19, 1096990), (38, 548495), (95, 219398), (163, 127870), (190, 109699), (326, 63935), (673, 30970), (815, 25574), (1346, 15485), (1630, 12787), (3097, 6730), (3365, 6194)]