200017880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{51551}}^1$

素因数の和:51659

約数の個数: 32

約数和(自身を含む): 454688640

約数和(自身を除く): 254670760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 51551, 103102, 206204, 257755, 412408, 515510, 1031020, 2062040, 5000447, 10000894, 20001788, 25002235, 40003576, 50004470, 100008940, 200017880]

約数ペア:

[(1, 200017880), (2, 100008940), (4, 50004470), (5, 40003576), (8, 25002235), (10, 20001788), (20, 10000894), (40, 5000447), (97, 2062040), (194, 1031020), (388, 515510), (485, 412408), (776, 257755), (970, 206204), (1940, 103102), (3880, 51551)]