521321216

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 1126325760

約数和(自身を除く): 605004544

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 383, 409, 416, 766, 818, 832, 1532, 1636, 1664, 3064, 3272, 3328, 4979, 5317, 6128, 6544, 9958, 10634, 12256, 13088, 19916, 21268, 24512, 26176, 39832, 42536, 49024, 52352, 79664, 85072, 98048, 104704, 156647, 159328, 170144, 313294, 318656, 340288, 626588, 637312, 680576, 1253176, 1274624, 1361152, 2036411, 2506352, 4072822, 5012704, 8145644, 10025408, 16291288, 20050816, 32582576, 40101632, 65165152, 130330304, 260660608, 521321216]

約数ペア:

[(1, 521321216), (2, 260660608), (4, 130330304), (8, 65165152), (13, 40101632), (16, 32582576), (26, 20050816), (32, 16291288), (52, 10025408), (64, 8145644), (104, 5012704), (128, 4072822), (208, 2506352), (256, 2036411), (383, 1361152), (409, 1274624), (416, 1253176), (766, 680576), (818, 637312), (832, 626588), (1532, 340288), (1636, 318656), (1664, 313294), (3064, 170144), (3272, 159328), (3328, 156647), (4979, 104704), (5317, 98048), (6128, 85072), (6544, 79664), (9958, 52352), (10634, 49024), (12256, 42536), (13088, 39832), (19916, 26176), (21268, 24512)]