257691694

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{3457}}^1$

素因数の和:3580

約数の個数: 32

約数和(自身を含む): 432222336

約数和(自身を除く): 174530642

約数列:

[1, 2, 13, 26, 47, 61, 94, 122, 611, 793, 1222, 1586, 2867, 3457, 5734, 6914, 37271, 44941, 74542, 89882, 162479, 210877, 324958, 421754, 2112227, 2741401, 4224454, 5482802, 9911219, 19822438, 128845847, 257691694]

約数ペア:

[(1, 257691694), (2, 128845847), (13, 19822438), (26, 9911219), (47, 5482802), (61, 4224454), (94, 2741401), (122, 2112227), (611, 421754), (793, 324958), (1222, 210877), (1586, 162479), (2867, 89882), (3457, 74542), (5734, 44941), (6914, 37271)]