199378640

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{10979}}^1$

素因数の和:11219

約数の個数: 40

約数和(自身を含む): 465639840

約数和(自身を除く): 266261200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4540, 9080, 10979, 18160, 21958, 43916, 54895, 87832, 109790, 175664, 219580, 439160, 878320, 2492233, 4984466, 9968932, 12461165, 19937864, 24922330, 39875728, 49844660, 99689320, 199378640]

約数ペア:

[(1, 199378640), (2, 99689320), (4, 49844660), (5, 39875728), (8, 24922330), (10, 19937864), (16, 12461165), (20, 9968932), (40, 4984466), (80, 2492233), (227, 878320), (454, 439160), (908, 219580), (1135, 175664), (1816, 109790), (2270, 87832), (3632, 54895), (4540, 43916), (9080, 21958), (10979, 18160)]