72520815

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3221}}^1$

素因数の和:3327

約数の個数: 32

約数和(自身を含む): 123724800

約数和(自身を除く): 51203985

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 1185, 1501, 3221, 4503, 7505, 9663, 16105, 22515, 48315, 61199, 183597, 254459, 305995, 763377, 917985, 1272295, 3816885, 4834721, 14504163, 24173605, 72520815]

約数ペア:

[(1, 72520815), (3, 24173605), (5, 14504163), (15, 4834721), (19, 3816885), (57, 1272295), (79, 917985), (95, 763377), (237, 305995), (285, 254459), (395, 183597), (1185, 61199), (1501, 48315), (3221, 22515), (4503, 16105), (7505, 9663)]