257788245

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{120181}}^1$

素因数の和:120213

約数の個数: 32

約数和(自身を含む): 484573824

約数和(自身を除く): 226785579

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 120181, 360543, 600905, 1321991, 1562353, 1802715, 3965973, 4687059, 6609955, 7811765, 17185883, 19829865, 23435295, 51557649, 85929415, 257788245]

約数ペア:

[(1, 257788245), (3, 85929415), (5, 51557649), (11, 23435295), (13, 19829865), (15, 17185883), (33, 7811765), (39, 6609955), (55, 4687059), (65, 3965973), (143, 1802715), (165, 1562353), (195, 1321991), (429, 600905), (715, 360543), (2145, 120181)]