260416

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:338

約数の個数: 28

約数和(自身を含む): 558292

約数和(自身を除く): 297876

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 313, 416, 626, 832, 1252, 2504, 4069, 5008, 8138, 10016, 16276, 20032, 32552, 65104, 130208, 260416]

約数ペア:

[(1, 260416), (2, 130208), (4, 65104), (8, 32552), (13, 20032), (16, 16276), (26, 10016), (32, 8138), (52, 5008), (64, 4069), (104, 2504), (208, 1252), (313, 832), (416, 626)]