261640256

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{29411}}^1$

素因数の和:29562

約数の個数: 28

約数和(自身を含む): 522945360

約数和(自身を除く): 261305104

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 4448, 8896, 29411, 58822, 117644, 235288, 470576, 941152, 1882304, 4088129, 8176258, 16352516, 32705032, 65410064, 130820128, 261640256]

約数ペア:

[(1, 261640256), (2, 130820128), (4, 65410064), (8, 32705032), (16, 16352516), (32, 8176258), (64, 4088129), (139, 1882304), (278, 941152), (556, 470576), (1112, 235288), (2224, 117644), (4448, 58822), (8896, 29411)]