257042006

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{677}}^1\times {\mathrm{859}}^1$

素因数の和:1568

約数の個数: 32

約数和(自身を含む): 440808480

約数和(自身を除く): 183766474

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 677, 859, 1354, 1718, 8801, 11167, 11509, 14603, 17602, 22334, 23018, 29206, 149617, 189839, 299234, 379678, 581543, 1163086, 7560059, 9886231, 15120118, 19772462, 128521003, 257042006]

約数ペア:

[(1, 257042006), (2, 128521003), (13, 19772462), (17, 15120118), (26, 9886231), (34, 7560059), (221, 1163086), (442, 581543), (677, 379678), (859, 299234), (1354, 189839), (1718, 149617), (8801, 29206), (11167, 23018), (11509, 22334), (14603, 17602)]