66643840

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1031}}^1$

素因数の和:1151

約数の個数: 64

約数和(自身を含む): 161053920

約数和(自身を除く): 94410080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 505, 640, 808, 1010, 1031, 1616, 2020, 2062, 3232, 4040, 4124, 5155, 6464, 8080, 8248, 10310, 12928, 16160, 16496, 20620, 32320, 32992, 41240, 64640, 65984, 82480, 104131, 131968, 164960, 208262, 329920, 416524, 520655, 659840, 833048, 1041310, 1666096, 2082620, 3332192, 4165240, 6664384, 8330480, 13328768, 16660960, 33321920, 66643840]

約数ペア:

[(1, 66643840), (2, 33321920), (4, 16660960), (5, 13328768), (8, 8330480), (10, 6664384), (16, 4165240), (20, 3332192), (32, 2082620), (40, 1666096), (64, 1041310), (80, 833048), (101, 659840), (128, 520655), (160, 416524), (202, 329920), (320, 208262), (404, 164960), (505, 131968), (640, 104131), (808, 82480), (1010, 65984), (1031, 64640), (1616, 41240), (2020, 32992), (2062, 32320), (3232, 20620), (4040, 16496), (4124, 16160), (5155, 12928), (6464, 10310), (8080, 8248)]