251012455

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 325140480

約数和(自身を除く): 74128025

約数列:

[1, 5, 23, 41, 115, 139, 205, 383, 695, 943, 1915, 3197, 4715, 5699, 8809, 15703, 15985, 28495, 44045, 53237, 78515, 131077, 266185, 361169, 655385, 1224451, 1805845, 2182717, 6122255, 10913585, 50202491, 251012455]

約数ペア:

[(1, 251012455), (5, 50202491), (23, 10913585), (41, 6122255), (115, 2182717), (139, 1805845), (205, 1224451), (383, 655385), (695, 361169), (943, 266185), (1915, 131077), (3197, 78515), (4715, 53237), (5699, 44045), (8809, 28495), (15703, 15985)]