257212006

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^2$

素因数の和:1300

約数の個数: 24

約数和(自身を含む): 430696440

約数和(自身を除く): 173484434

約数列:

[1, 2, 17, 19, 34, 38, 323, 631, 646, 1262, 10727, 11989, 21454, 23978, 203813, 398161, 407626, 796322, 6768737, 7565059, 13537474, 15130118, 128606003, 257212006]

約数ペア:

[(1, 257212006), (2, 128606003), (17, 15130118), (19, 13537474), (34, 7565059), (38, 6768737), (323, 796322), (631, 407626), (646, 398161), (1262, 203813), (10727, 23978), (11989, 21454)]