20695775

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 26800368

約数和(自身を除く): 6104593

約数列:

[1, 5, 25, 41, 61, 205, 305, 331, 1025, 1525, 1655, 2501, 8275, 12505, 13571, 20191, 62525, 67855, 100955, 339275, 504775, 827831, 4139155, 20695775]

約数ペア:

[(1, 20695775), (5, 4139155), (25, 827831), (41, 504775), (61, 339275), (205, 100955), (305, 67855), (331, 62525), (1025, 20191), (1525, 13571), (1655, 12505), (2501, 8275)]