16385920

素因数分解:

$2^7\times 5^1\times {\mathrm{25603}}^1$

素因数の和:25622

約数の個数: 32

約数和(自身を含む): 39174120

約数和(自身を除く): 22788200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 25603, 51206, 102412, 128015, 204824, 256030, 409648, 512060, 819296, 1024120, 1638592, 2048240, 3277184, 4096480, 8192960, 16385920]

約数ペア:

[(1, 16385920), (2, 8192960), (4, 4096480), (5, 3277184), (8, 2048240), (10, 1638592), (16, 1024120), (20, 819296), (32, 512060), (40, 409648), (64, 256030), (80, 204824), (128, 128015), (160, 102412), (320, 51206), (640, 25603)]