1640201728

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1609}}^1$

素因数の和:1819

約数の個数: 80

約数和(自身を含む): 3597113520

約数和(自身を除く): 1956911792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 181, 256, 352, 362, 512, 704, 724, 1408, 1448, 1609, 1991, 2816, 2896, 3218, 3982, 5632, 5792, 6436, 7964, 11584, 12872, 15928, 17699, 23168, 25744, 31856, 35398, 46336, 51488, 63712, 70796, 92672, 102976, 127424, 141592, 205952, 254848, 283184, 291229, 411904, 509696, 566368, 582458, 823808, 1019392, 1132736, 1164916, 2265472, 2329832, 3203519, 4530944, 4659664, 6407038, 9061888, 9319328, 12814076, 18638656, 25628152, 37277312, 51256304, 74554624, 102512608, 149109248, 205025216, 410050432, 820100864, 1640201728]

約数ペア:

[(1, 1640201728), (2, 820100864), (4, 410050432), (8, 205025216), (11, 149109248), (16, 102512608), (22, 74554624), (32, 51256304), (44, 37277312), (64, 25628152), (88, 18638656), (128, 12814076), (176, 9319328), (181, 9061888), (256, 6407038), (352, 4659664), (362, 4530944), (512, 3203519), (704, 2329832), (724, 2265472), (1408, 1164916), (1448, 1132736), (1609, 1019392), (1991, 823808), (2816, 582458), (2896, 566368), (3218, 509696), (3982, 411904), (5632, 291229), (5792, 283184), (6436, 254848), (7964, 205952), (11584, 141592), (12872, 127424), (15928, 102976), (17699, 92672), (23168, 70796), (25744, 63712), (31856, 51488), (35398, 46336)]