16600580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 36220800

約数和(自身を除く): 19620220

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 199, 215, 388, 398, 430, 485, 796, 860, 970, 995, 1940, 1990, 3980, 4171, 8342, 8557, 16684, 17114, 19303, 20855, 34228, 38606, 41710, 42785, 77212, 83420, 85570, 96515, 171140, 193030, 386060, 830029, 1660058, 3320116, 4150145, 8300290, 16600580]

約数ペア:

[(1, 16600580), (2, 8300290), (4, 4150145), (5, 3320116), (10, 1660058), (20, 830029), (43, 386060), (86, 193030), (97, 171140), (172, 96515), (194, 85570), (199, 83420), (215, 77212), (388, 42785), (398, 41710), (430, 38606), (485, 34228), (796, 20855), (860, 19303), (970, 17114), (995, 16684), (1940, 8557), (1990, 8342), (3980, 4171)]