257927085

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48989}}^1$

素因数の和:49019

約数の個数: 40

約数和(自身を含む): 497934360

約数和(自身を除く): 240007275

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 48989, 146967, 244945, 440901, 636857, 734835, 1322703, 1910571, 2204505, 3184285, 3968109, 5731713, 6613515, 9552855, 17195139, 19840545, 28658565, 51585417, 85975695, 257927085]

約数ペア:

[(1, 257927085), (3, 85975695), (5, 51585417), (9, 28658565), (13, 19840545), (15, 17195139), (27, 9552855), (39, 6613515), (45, 5731713), (65, 3968109), (81, 3184285), (117, 2204505), (135, 1910571), (195, 1322703), (351, 734835), (405, 636857), (585, 440901), (1053, 244945), (1755, 146967), (5265, 48989)]