199707925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 274013712

約数和(自身を除く): 74305787

約数列:

[1, 5, 17, 25, 41, 73, 85, 157, 205, 365, 425, 697, 785, 1025, 1241, 1825, 2669, 2993, 3485, 3925, 6205, 6437, 11461, 13345, 14965, 17425, 31025, 32185, 50881, 57305, 66725, 74825, 109429, 160925, 194837, 254405, 286525, 469901, 547145, 974185, 1272025, 2349505, 2735725, 4870925, 7988317, 11747525, 39941585, 199707925]

約数ペア:

[(1, 199707925), (5, 39941585), (17, 11747525), (25, 7988317), (41, 4870925), (73, 2735725), (85, 2349505), (157, 1272025), (205, 974185), (365, 547145), (425, 469901), (697, 286525), (785, 254405), (1025, 194837), (1241, 160925), (1825, 109429), (2669, 74825), (2993, 66725), (3485, 57305), (3925, 50881), (6205, 32185), (6437, 31025), (11461, 17425), (13345, 14965)]