20131803520

素因数分解:

$2^7\times 5^1\times {\mathrm{1559}}^1\times {\mathrm{20177}}^1$

素因数の和:21755

約数の個数: 64

約数和(自身を含む): 48160850400

約数和(自身を除く): 28029046880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1559, 3118, 6236, 7795, 12472, 15590, 20177, 24944, 31180, 40354, 49888, 62360, 80708, 99776, 100885, 124720, 161416, 199552, 201770, 249440, 322832, 403540, 498880, 645664, 807080, 997760, 1291328, 1614160, 2582656, 3228320, 6456640, 12913280, 31455943, 62911886, 125823772, 157279715, 251647544, 314559430, 503295088, 629118860, 1006590176, 1258237720, 2013180352, 2516475440, 4026360704, 5032950880, 10065901760, 20131803520]

約数ペア:

[(1, 20131803520), (2, 10065901760), (4, 5032950880), (5, 4026360704), (8, 2516475440), (10, 2013180352), (16, 1258237720), (20, 1006590176), (32, 629118860), (40, 503295088), (64, 314559430), (80, 251647544), (128, 157279715), (160, 125823772), (320, 62911886), (640, 31455943), (1559, 12913280), (3118, 6456640), (6236, 3228320), (7795, 2582656), (12472, 1614160), (15590, 1291328), (20177, 997760), (24944, 807080), (31180, 645664), (40354, 498880), (49888, 403540), (62360, 322832), (80708, 249440), (99776, 201770), (100885, 199552), (124720, 161416)]