215385.0000000

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 14883840

約数和(自身を除く): 6421335

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1291, 1311, 2185, 3873, 6455, 6555, 19365, 24529, 29693, 73587, 89079, 122645, 148465, 367935, 445395, 564167, 1692501, 2820835, 8462505]

約数ペア:

[(1, 8462505), (3, 2820835), (5, 1692501), (15, 564167), (19, 445395), (23, 367935), (57, 148465), (69, 122645), (95, 89079), (115, 73587), (285, 29693), (345, 24529), (437, 19365), (1291, 6555), (1311, 6455), (2185, 3873)]