20178944

素因数分解:

$2^{11}\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 21098656

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 118, 128, 167, 236, 256, 334, 472, 512, 668, 944, 1024, 1336, 1888, 2048, 2672, 3776, 5344, 7552, 9853, 10688, 15104, 19706, 21376, 30208, 39412, 42752, 60416, 78824, 85504, 120832, 157648, 171008, 315296, 342016, 630592, 1261184, 2522368, 5044736, 10089472, 20178944]

約数ペア:

[(1, 20178944), (2, 10089472), (4, 5044736), (8, 2522368), (16, 1261184), (32, 630592), (59, 342016), (64, 315296), (118, 171008), (128, 157648), (167, 120832), (236, 85504), (256, 78824), (334, 60416), (472, 42752), (512, 39412), (668, 30208), (944, 21376), (1024, 19706), (1336, 15104), (1888, 10688), (2048, 9853), (2672, 7552), (3776, 5344)]