390889071

素因数分解:

$3^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 645504000

約数和(自身を除く): 254614929

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 243, 409, 437, 513, 621, 729, 1227, 1311, 1539, 1863, 2187, 3681, 3933, 4617, 5589, 7771, 9407, 11043, 11799, 13851, 16767, 23313, 28221, 33129, 35397, 41553, 50301, 69939, 84663, 99387, 106191, 178733, 209817, 253989, 298161, 318573, 536199, 629451, 761967, 894483, 955719, 1608597, 1888353, 2285901, 4825791, 5665059, 6857703, 14477373, 16995177, 20573109, 43432119, 130296357, 390889071]

約数ペア:

[(1, 390889071), (3, 130296357), (9, 43432119), (19, 20573109), (23, 16995177), (27, 14477373), (57, 6857703), (69, 5665059), (81, 4825791), (171, 2285901), (207, 1888353), (243, 1608597), (409, 955719), (437, 894483), (513, 761967), (621, 629451), (729, 536199), (1227, 318573), (1311, 298161), (1539, 253989), (1863, 209817), (2187, 178733), (3681, 106191), (3933, 99387), (4617, 84663), (5589, 69939), (7771, 50301), (9407, 41553), (11043, 35397), (11799, 33129), (13851, 28221), (16767, 23313)]