81904082

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 135051840

約数和(自身を除く): 53147758

約数列:

[1, 2, 13, 26, 131, 139, 173, 262, 278, 346, 1703, 1807, 2249, 3406, 3614, 4498, 18209, 22663, 24047, 36418, 45326, 48094, 236717, 294619, 312611, 473434, 589238, 625222, 3150157, 6300314, 40952041, 81904082]

約数ペア:

[(1, 81904082), (2, 40952041), (13, 6300314), (26, 3150157), (131, 625222), (139, 589238), (173, 473434), (262, 312611), (278, 294619), (346, 236717), (1703, 48094), (1807, 45326), (2249, 36418), (3406, 24047), (3614, 22663), (4498, 18209)]