20444672

素因数分解:

$2^9\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:638

約数の個数: 40

約数和(自身を含む): 41484696

約数和(自身を除く): 21040024

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 292, 512, 547, 584, 1094, 1168, 2188, 2336, 4376, 4672, 8752, 9344, 17504, 18688, 35008, 37376, 39931, 70016, 79862, 140032, 159724, 280064, 319448, 638896, 1277792, 2555584, 5111168, 10222336, 20444672]

約数ペア:

[(1, 20444672), (2, 10222336), (4, 5111168), (8, 2555584), (16, 1277792), (32, 638896), (64, 319448), (73, 280064), (128, 159724), (146, 140032), (256, 79862), (292, 70016), (512, 39931), (547, 37376), (584, 35008), (1094, 18688), (1168, 17504), (2188, 9344), (2336, 8752), (4376, 4672)]