199425920

素因数分解:

$2^7\times 5^1\times {\mathrm{311603}}^1$

素因数の和:311622

約数の個数: 32

約数和(自身を含む): 476754120

約数和(自身を除く): 277328200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 311603, 623206, 1246412, 1558015, 2492824, 3116030, 4985648, 6232060, 9971296, 12464120, 19942592, 24928240, 39885184, 49856480, 99712960, 199425920]

約数ペア:

[(1, 199425920), (2, 99712960), (4, 49856480), (5, 39885184), (8, 24928240), (10, 19942592), (16, 12464120), (20, 9971296), (32, 6232060), (40, 4985648), (64, 3116030), (80, 2492824), (128, 1558015), (160, 1246412), (320, 623206), (640, 311603)]